Index of IANA Protocol Registries

Protocol/Registry	Defining Document/Comments
Access Network Control Protocol (ANCP)
ANCP Capability Types	RFC 6320 Standards Action
ANCP Command Codes	RFC 6320 Standards Action
ANCP Message Types	RFC 6320 Standards Action
ANCP Port Management Functions	RFC 6320 Standards Action
ANCP Result Codes	RFC 6320 0x0-0xFFF: IETF Review. 0x1000-0xFFFFFF: Specification Required.
ANCP Technology Types	RFC 6320 Expert Review
ANCP TLV Types	RFC 6320 0x0000-0x1FFF: IETF Review. 0x2000-0xFFFF: Specification Required.
Joint GSMP / ANCP Version Registry	RFC 6320 Standards Action
Ad Hoc On Demand Distance Vector (AODV)
AODV Message Types	RFC 3561 Standards action. (section 12)
Extension Type	RFC 3561 Standards action. (section 12)
Address Family Numbers
Address Family Numbers	RFC 2453, RFC 2858 1-16383: Standards Action (Early Allocation available per RFC 4020). 16384-32767: First Come First Served.
Address Resolution Protocol (ARP) Parameters
Hardware Types	RFC 826, RFC 5494 Requests for values below 256 : Expert Review (Expert: Carlos Pignataro). Requests for more than one value: Expert Review (Expert: Carlos Pignataro). Requests for one value greater than 255: First Come First Served. Requests for one value, no value specified: First Come First Served; can only be assigned a two-octet value (i.e., a value greater than 255).
Operation Codes	RFC 826, RFC 5494 IETF Review or IESG Approval
Protocol Type	RFC 826, RFC 5342, RFC 5494 These numbers share the Ethertype space, which is administered as described in [RFC5342]. See http://www.iana.org/assignments/ethernet-numbers.
Applicable Exchange Core (APEX) Parameters
APEX Endpoint Applications	RFC 3340 Expert review (Appendix B)
APEX Options	RFC 3340 Expert review (Appendix B)
APEX Services	RFC 3340 Expert review (Appendix B)
Application Access Protocol (ACAP) Parameters
ACAP Capabilities	RFC 2244 Specification Required. Note: review of proposals on the discuss@apps.ietf.org mailing list is strongly encouraged prior to registration.
ACAP Response Codes	RFC 2244 First Come, First Served. Note: review of proposals on the discuss@apps.ietf.org mailing list is strongly encouraged prior to registration.
Dataset Classes	RFC 2244 Standards-Track or IESG-Approved Experimental RFC
Vendor Subtrees	RFC 2244, RFC 6075 FCFS
Authenticated Encryption with Associated Data (AEAD) Parameters
AEAD Algorithms	RFC 5116 1-32767: Specification Required. 32768-65535: Private Use.
Authentication and Key Agreement (AKA)
Version Namespace	RFC 3310 Expert Review (Experts: Vesa Torvinen-Primary, Jari Arkko-Secondary)
Authentication Option Name Spaces
Please look under Dynamic Host Configuration Protocol (DHCP)
Authentication, Authorization, and Accounting (AAA) Parameters
Application IDs	RFC 3588, RFC 6942 0-16777215 - Specification Required 16777216-4294967294 - Vendor-Specific (First Come First Served)
AVP Codes	RFC 6733 Expert Review with Specification (Experts: Lionel Morand (primary) and Jouni Korhonen (secondary))
AVP Flags Value	RFC 3588 Standards Action Process (section 11.1.2)
AVP Specific Values	RFC 3588 IETF consensus (when not otherwise specified)
Command Codes	RFC 3588, RFC 5719 256-8388607: IETF Review. 8388608-16777213: First Come First Served with specification. Vendor-specific.
Command Flags	RFC 3588 0-7: Standards Action (section 11.2.2)
Mobility Capability Registry	RFC 5447 Specification Required. Note: only numeric values that are 2^x (power of two, where x >= 2) may be registered. (Expert: Jouni Korhonen)
QoS Profile	RFC 5624 0-511: Standards Action. 512-32767: Specification Required.
Author Domain Signing Practices (ADSP) Parameters
ADSP Outbound Signing Practices	RFC 5617 IETF Review
ADSP Specification Tags	RFC 5617 IETF Review
Automatic Responses to Electronic Mail Parameters
Auto-Submitted header field keywords	RFC 5436 Specification Required
Auto-Submitted header field optional parameters	RFC 3834 IETF Consensus
Autonomous System (AS) Numbers
16-bit Autonomous System Numbers	RFC 1930, RFC 5398, Internet Draft draft-ietf-idr-as-private-reservation-05 RIR request to the IANA or IETF Review
32-bit Autonomous System Numbers	RFC 1930, RFC 6793, RFC 5398, Internet Draft draft-ietf-idr-as-private-reservation-05 RIR request to the IANA or IETF Review
Bidirectional Forwarding Detection (BFD) Parameters
BFD Authentication Types	RFC 5880 Expert Review (Primary expert- Dave Ward; Backup experts: Dave Katz, Jeff Haas and Les Ginsberg)
BFD Diagnostic Codes	RFC 5880 Expert Review (Primary expert- Dave Ward; Backup experts: Dave Katz, Jeff Haas and Les Ginsberg)
Binary Floor Control Protocol (BFCP) Parameters
Attribute Subregistry	RFC 4582 Standards-Track RFC
Error Code Subregistry	RFC 4582 Standards-Track RFC
Primitive Subregistry	RFC 4582 Standards-Track RFC
Request Status Subregistry	RFC 4582 Standards-Track RFC
Blocks Extensible Exchange Protocol (BEEP) Parameters
BEEP Features	RFC 3080 Expert review (Appendix B) (Expert-Marshall T. Rose)
BEEP Profiles	RFC 3080 Expert review (Appendix B) (Expert-Marshall T. Rose)
Border Gateway Protocol (BGP) Parameters
BGP Cease NOTIFICATION message subcodes	RFC 4486 Standards Action (Early Allocation available per RFC 4020)
BGP Data Collection Standard Communities	RFC 4384 IETF Consensus [usually through the Global Routing Operations Working Group (grow)]
BGP Error Codes	RFC 4271 Standards Action (Early Allocation available per RFC 4020)
BGP Error Subcodes	RFC 4271 Standards Action (Early Allocation available per RFC 4020)
BGP Extended Communities Types	RFC 4360 regular, transitive 0x90-0xbf : Standards Action (Early Allocation available per RFC 4020) 0x00-x3f : FCFS regular, non-transitive 0xd0-0xff : Standards Action (Early Allocation available per RFC 4020) 0x40-0x7f : FCFS extended, transitive 0x9000-0xbfff : Standards Action (Early Allocation available per RFC 4020) 0x0000-0x3ffff : FCFS extended, non-transitive 0xd000-0xffff : Standards Action (Early Allocation available per RFC 4020) 0x4000-0x7fff : FCFS
BGP Finite State Machine Error Subcodes	RFC 6608 Standards Action (Early Allocation available per RFC 4020)
BGP Layer 2 Encapsulation Types	RFC 6624 0-127: Expert Review; 128-251: First Come First Served; 252-255: Experimental Use
BGP Layer 2 TLV Types	RFC 6624 0-127: Expert Review; 128-251: First Come First Served; 252-255: Experimental Use
BGP Message Types	RFC 4271 Standards Action (Early Allocation available per RFC 4020)
BGP OPEN Optional Parameter Types	RFC 5492 IETF Review
BGP Outbound Route Filtering (ORF) Types	RFC 5291 0-63: Standards Action or the Early Allocation process defined in [RFC4020]. 64-127: First Come First Served. 128-255: Reserved for Vendor-Specific.
BGP Path Attributes	RFC 4271 Standards Action (Early Allocation available per RFC 4020)
BGP Tunnel Encapsulation Attribute Sub-TLVs	RFC 5512 Standards Action (Early Allocation available per RFC 4020)
BGP Tunnel Encapsulation Attribute Tunnel Types	RFC 5512 First Come First Served
Capability Codes	RFC 5492 Values 1-63: IETF Review. Values 64-127: FCFS.
Four-octet AS Specific Extended Community	RFC 5668 First Come First Served
IPv4 Address Specific Extended Community	RFC 4360 First Come First Serve
IPv6 Address Specific Extended Community	RFC 5701 First Come First Served
Opaque Extended Community	RFC 4360 First Come First Serve
Traffic Action Fields	RFC 5575 IETF Review
Two-octet AS Specific Extended Community	RFC 4360 First Come First Serve
Well-known Communities	RFC 1997 0xFFFF0000-0xFFFF8000: First Come First Served. 0xFFFF8001-0xFFFFFFFF: Standards Action (Early Allocation available per RFC 4020).
Building Blocks
Building Blocks	RFC 3048 RFC (specification required) (section 6)
Bundle Protocol
Block Processing Control Flags	RFC 6255 Specification Required
Bundle Block Types	RFC 6255 Specification Required
Bundle Custody Signal Reason Codes	RFC 6255 Specification Required
Bundle Metadata Type Codes	RFC 6258 Specification Required
Bundle Processing Control Flags	RFC 6255 Specification Required
Bundle Status Report Flags	RFC 6255 RFC Required
Bundle Status Report Reason Codes	RFC 6255 Specification Required
Ciphersuite Flags	RFC 6257 Specification Required
Ciphersuite Numbers	RFC 6257 Specification Required
Ciphersuite Parameters and Results Type Registry	RFC 6257 Specification Required
Primary Bundle Protocol Version	RFC 6255 RFC Required
Caller-ID Numbering Plans
Tokens	RFC 3939 Standards-track RFC
Candidate Access Router Discovery (CARD) Parameters
SEAMOBY AVP Type Registry	RFC 4065 Expert Review (Expert - James Kempf)
SEAMOBY Experimental Mobility Protocol Subtype Registry	RFC 4065 Specification Required and IESG Review
SEAMOBY Layer 2 Access Technology Identifier Registry	RFC 4065 Specification Required
Centralized Conferencing Manipulation Protocol (CCMP) Parameters
CCMP Message Types	RFC 6503 Specification Required
CCMP Response Codes	RFC 6503 Specification Required
CERT RR Certificate Types
Certificate Types	RFC 4398 0x0000 through 0x00FF - IETF Standards Action 0xFF00 through 0xFFFF - IETF Standards Action 0x0100 through 0xFEFF - IETF Consensus (based on RFC documentation of the certificate type).
Channel-Binding Types
Channel-Binding Types	RFC 5056 Expert Review (Expert: Nicolas Williams)
Character Sets
Character Sets	RFC 2978 Expert Review (Primary Expert Ned Freed and Secondary Expert Martin Duerst)
Mailing List Information	RFC 2978 Expert Review
Registration Templates	RFC 2978 Expert Review (Primary Expert Ned Freed and Secondary Expert Martin Duerst)
Cisco Service Level Assurance Protocol
Cisco SLA Protocol Address Family Registry	RFC 6812 Specification Required
Cisco SLA Protocol Authenticator Modes Registry	RFC 6812 RFC Required
Cisco SLA Protocol CSLD Command Registry	RFC 6812 RFC Required
Cisco SLA Protocol Measurement Type Registry	RFC 6812 RFC Required
Cisco SLA Protocol Roles Registry	RFC 6812 RFC Required
Cisco SLA Protocol Status Types Registry	RFC 6812 First Come First Served
Cisco SLA Protocol Version Number Registry	RFC 6812 RFC Required
Common Architecture Label IPv6 Security Option (CALIPSO)
CALIPSO Domain of Interpretation (DOI)	RFC 5570 1:0:0:0 to 254:255:255:255 - Expert Review. 255:0:0:0 to 255:255:255:255 - IESG Approval.
Common Name Resolution Protocol (CNRP) Parameters
Properties, Property Types, and Status Messages	RFC 3367 FCFS (section 10)
Common Open Policy Service (COPS) Protocol Parameters
A-Types and Sub-Types	RFC 3182 0-127: IETF consensus 128-255: Private use (section 8)
ADMISSION_PRI (P-Type 0x05) Error Codes	RFC 6401 0-127: IETF Review. 128-240: First Come First Served.
Auth_Session X-Types and Sub-Types	RFC 3520 0-127: IETF consensus 128-255: Private use (section 8)
C-Num and C-Type Values	RFC 2748 IETF consensus (section 6)
Client Types Values	RFC 2748 0x001-0x3FF: COPS extension document 0x4000-0x7FFF: Private Use 0x8000-0xFFFF: FCFS (section 6)
Error sub-codes defined for messages containing Client-type = 0	RFC 4261 IETF Consensus
Error Values	RFC 3182 0-32767: IETF consensus 32768-65535: Private use (section 8)
M-Types, Reason Sub-Codes, and Error Sub-Codes	RFC 2748 Same IANA considerations as respective client type (section 6)
Merge Strategies	RFC 6401 0-127: IETF Review. 128-240: First Come First Served.
P-Type	RFC 2750 0-49151: IETF Consensus. 49152-53247: Vendor-specific, First Come First Served. 53248-65535: Reserved for Private Use.
R-Types, Reason-Codes, Report-Types, Decision Object Command-Codes/Flags, and Error Codes	RFC 2748 IETF consensus (section 6)
Receiver Proxy Control Policy Element (P-Type 0x07) Control-Value field	RFC 5946 0-127: IETF Review. 128-240: First Come First Served.
S-Num, S-Types, and Error-Codes	RFC 3084 IETF consensus (section 9)
X-Types and Sub Types	RFC 3520 0-127 IETF Consensus 128-255 Private Use
Common Presence and Instant Messaging (CPIM)
CPIM Headers	RFC 3862 Standards Track RFC
Constrained RESTful Environments (CORE) Parameters
Interface Description (if=) Link Target Attribute Values	RFC 6690 Value starts with "core": IETF Review. All other values: Specification Required.
Resource Type (rt=) Link Target Attribute Values	RFC 6690 Value starts with "core": IETF Review. All other values: Specification Required.
Content Disposition Values and Parameters
Content Disposition Parameters	RFC 2183 First Come First Served
Content Disposition Values	RFC 2183 Standards Track or IESG-Approved Experimental RFC
Handling Parameter Values	RFC 3204 Not defined
Voice Parameter Values	RFC 2421 Not defined
Context Labels for Internet Messages
Internet Messages Content Types	RFC 3458 RFC (specification required) (section 8)
Context Transfer Protocol (CXTP) Parameters
SEAMOBY Context Transfer Profile Type Registry	RFC 4065 Expert Review (Expert - James Kempf)
SEAMOBY Context Transfer Protocol Authorization Token Calculation Algorithms	RFC 4065 Specification Required
Control And Provisioning of Wireless Access Points (CAPWAP) Parameters
AC DTLS Policy	RFC 5415 Standards Action
AC Information Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
AC Security Types	RFC 5415 Standards Action
CAPWAP Control Message Flags	RFC 5415 Expert Review (Expert: Margaret Wasserman)
CAPWAP Header Flags	RFC 5415 Expert Review (Expert: Margaret Wasserman)
CAPWAP IEEE 802.11 Message Types	RFC 5416 Expert Review (Expert: Margaret Wasserman)
CAPWAP Message Element Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
CAPWAP Message Types	RFC 5415 Expert Review (Expert: Margaret Wasserman)
CAPWAP Transport Protocol Types	RFC 5415 Expert Review (Expert: Margaret Wasserman)
CAPWAP Wireless Binding Identifier	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Data Transfer Mode	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Data Transfer Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Discovery Types	RFC 5415 Expert Review (Expert: Margaret Wasserman)
ECN Support	RFC 5415 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Antenna Combiner	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Antenna Selection	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Auth Type	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Encryption Capabilities	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Key Status	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 QoS	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Session Key Flags	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 Tagging Policy	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 WTP Radio Fail	RFC 5416 Expert Review (Expert: Margaret Wasserman)
IEEE 802.11 WTP Radio Type	RFC 5416 Expert Review (Expert: Margaret Wasserman)
Radio Admin State	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Radio Failure Causes	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Radio Operational State	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Result Code	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Returned Message Element Reason	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP Board Data Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP Descriptor Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP Fallback Mode	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP Frame Tunnel Mode	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP MAC Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP Radio Stats Failure Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
WTP Reboot Stats Failure Type	RFC 5415 Expert Review (Expert: Margaret Wasserman)
Cryptographic Suites for IKEv1, IKEv2, and IPsec
Identifiers	RFC 4308 RFC and expert review (Expert - Tero Kivinen)
Cryptographically Generated Addresses (CGA) Name Space
CGA Extension Type Values	RFC 4581 Standards Action
CGA SEC	RFC 4982 Standards Action
CGA Type Tags	RFC 3972 First Come First Serve (FCFS)
Data Link Switching Client Access Protocol (DCAP) Parameters
Data Link Switching Protocol Frame Codes	RFC 2114 RFC Required
Data Link Switching Protocol Sender Capability Codes	RFC 2114 RFC Required
Data Structure for the Security Suitability of Cryptographic Algorithms (DSSC)
Cryptographic Algorithms	RFC 5698 First Come First Served
Parameter Definitions	RFC 5698 RFC Required
Datagram Congestion Control Protocol (DCCP) Parameters
Ack Vector States	RFC 4340 Standards Track RFC
CCID4-specific Feature Numbers (128-255)	RFC 5622 Standards Action
CCID4-specific Option Types (128-255)	RFC 5622 Standards Action
CCID4-specific Reset codes (128-255)	RFC 5622 Standards Action
Congestion Control Identifiers	RFC 4340 IETF Consensus (IETF RFC publication)
Drop Codes	RFC 4340 Standards Track RFC
Feature Numbers	RFC 4340 IETF Consensus (IETF RFC publication)
Option Types	RFC 4340 IETF Consensus (IETF RFC publication)
Packet Types	RFC 4340 Standards Track RFC
Port Numbers	RFC 4340, RFC 6335 0-49151: Review of application template (section 19.9); Reviewer: Eddie Kohler; 0-1023: IETF Review; 49152-65535: Private Use
Profile for DCCP Congestion Control ID 2: TCP-like Congestion Control Parameters - Feature Numbers	RFC 4341 Standards Track RFC
Profile for DCCP Congestion Control ID 2: TCP-like Congestion Control Parameters - Option Types	RFC 4341 Standards Track RFC
Profile for DCCP Congestion Control ID 2: TCP-like Congestion Control Parameters - Reset Codes	RFC 4341 Standards Track RFC
Profile for DCCP Congestion Control ID 3: TFRC Congestion Control Parameters - Feature Numbers	RFC 4342 Standards Track RFC
Profile for DCCP Congestion Control ID 3: TFRC Congestion Control Parameters - Option Types	RFC 4342 Standards Track RFC
Profile for DCCP Congestion Control ID 3: TFRC Congestion Control Parameters - Reset Codes	RFC 4342 Standards Track RFC
Reset Codes	RFC 4340 IETF Consensus (IETF RFC publication)
Service Codes	RFC 4340 Specification Required or First Come First Serve
Datagram Transport Layer Security (DTLS) Extension to Establish Keys for Secure Real-time Transport Protocol (SRTP)
DTLS-SRTP Protection Profiles	RFC 5764 Specification Required
Delivery Status Notification (DSN) Types
address-types, diagnostic-types, MTA-name-types	RFC 3464 RFC Required
Diameter
AAA Parameters	RFC 3588 See AAA-Parameters
Differentiated Services Field Codepoints (DSCP)
DSCP Pools	RFC 2474 Pool 1: Standards Action. Pool 2: Experimental or local use/standardized assignments if Pool 1 exhausted (section 6)
Directory System Names
Distinguished Names	RFC 4520 Registry Closed
DNS-Based Authentication of Named Entities (DANE) Parameters
TLSA Certificate Usages	RFC 6698 RFC Required
TLSA Matching Types	RFC 6698 Specification Required
TLSA Selectors	RFC 6698 Specification Required
Domain Name System (DNS) Parameters
AFSDB RR Subtype	RFC 1035, RFC 6895 Registry Closed
DHCID RR type codes	RFC 4701 Standards Action
Digest Algorithms	RFC 3658, RFC 4034, RFC 4035 Standards Action
DNS CLASSes	RFC 1035, Internet Draft draft-ietf-dnsext-rfc6195bis-05 0 (0x0000) Standards Action, 1-127 (0x000-0x007F) IETF Review for data CLASSes only, 128-253 (0x0080-0x00FD) IETF Review for QCLASSes and meta-CLASSes only, 256-32767 (0x0100-0x7FFF) IETF Review, 32768-57343 (0x8000-0xDFFF) Specification Required for data CLASSes only, 57344-65279 (0xE000-0xFEFF) Specification Required for QCLASSes and meta-CLASSes only, 65280-65534 (0xFF00-0xFFFE) Reserved for Private Use, 65535 (0xFFFF) Standards Action
DNS EDNS0 Option Codes (OPT)	RFC 6891 Expert Review (Expert: Olafur Gudmundsson)
DNS Header Flags	Internet Draft draft-ietf-dnsext-rfc6195bis-05, RFC 1035 Standards Action
DNS KEY Record Diffie-Hellman Prime Lengths	RFC 2539 IETF Review
DNS KEY Record Diffie-Hellman Well-Known Prime/Generator Pairs	RFC 2539 0x0000-0x07ff: Standards Action. 0x0800-0xbfff: RFC Required.
DNS Key Resource Record Protocol Octet Values	RFC 2535 Registry now closed by RFC 3445.
DNS Label Types	RFC 6891 Standards Action
DNS OpCodes	RFC 6895 , RFC 1035 Standards Action as modified by [RFC4020]
DNS RCODEs	RFC 6895, RFC 1035 IETF Review
DNS Security (DNSSEC) Algorithm Numbers	RFC 3755, RFC 4034, RFC 6014, Internet Draft draft-ietf-dnsext-dnssec-algo-imp-status-04 RFC Required
DNSKEY RR Flags	RFC 3755 Standards Action
DNSSEC NSEC3 Flags	RFC 5155 Standards Action
DNSSEC NSEC3 Hash Algorithms	RFC 5155 Standards Action
DNSSEC NSEC3 PARAM Flags	RFC 5155 Standards Action
EDNS Header Flags	RFC 6891 Standards Action
EDNS version Number (8 bits)	RFC 6891 Standards Action
Resource Record (RR) TYPEs	RFC 6895, RFC 1035 0 (0x0000) RRTYPE zero is used as a special indicator for the SIG RR [RFC2931], [RFC4034] and in other circumstances and must never be allocated for ordinary use; 1-127 (0x0001-0x007F) DNS RRTYPE Allocation Policy for data TYPEs, 128-255 (0x0080-0x00FF) DNS RRTYPE Allocation Policy for Q TYPEs, Meta TYPEs, 256-61439 (0x0100-0xEFFF) DNS RRTYPE Allocation Policy for data RRTYPEs, 61440-65279 (0xF000-0xFEFF) IETF Review, 65280-65534 (0xFF00-0xFFFE) Reserved for Private Use, 65535 (0xFFFF) Reserved (Standards Action)
SIG (0) Algorithm Numbers	RFC 3755 IETF Standards Action
SSHFP RR types for fingerprint types	RFC 4255 IETF Consensus
SSHFP RR Types for public key algorithms	RFC 4255 IETF Consensus
DomainKeys Identified Mail (DKIM) Parameters
_domainkey DNS TXT Record Tag Specifications	RFC 6376 IETF Consensus
Authorized Third-Party Signature (ATPS) Tag Registry	RFC 6541 Specification Required
DKIM Hash Algorithms	RFC 6376 IETF Consensus
DKIM Key Type	RFC 6376 IETF Consensus
DKIM Reporting Tag Registry	Internet Draft draft-ietf-marf-dkim-reporting-16 Specification Required
DKIM Selector Flags	RFC 6376 IETF Consensus
DKIM Service Types	RFC 6376 IETF Consensus
DKIM Signature Tag Specifications	RFC 6376 IETF Consensus
DKIM-Signature Canonicalization Body	RFC 6376 IETF Consensus
DKIM-Signature Canonicalization Header	RFC 6376 IETF Consensus
DKIM-Signature Query Method	RFC 6376 IETF Consensus
Dynamic Host Configuration Protocol (DHCP)
Algorithm Name Space Values	RFC 3118 IETF consensus (section 6)
Protocol Name Space Values	RFC 3118 IETF consensus (section 6)
RDM Name Space Values	RFC 3118 IETF consensus (section 6)
Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP)
Authentication Suboption (value 8) number-spaces - Algorithm identifier values	RFC 4030 IETF Consensus
Authentication Suboption (value 8) number-spaces - RDM Algorithm identifier values	RFC 4030 IETF Consensus
BOOTP Vendor Extensions and DHCP Options	RFC 2939 IETF Consensus
CableLabs Client Configuration Option Ticket Control Mask Bit Definitions	RFC 3594 IETF Consensus (section 5)
DHCP Agent Sub-Option Codes	RFC 3046 IETF Consensus
DHCP Cablelabs Client Configuration Option Type 122 Sub-Option Codes	RFC 3495 IETF Consensus
DHCP Message Type 53 Values	RFC 2939 IETF Consensus
DHCP State Type 156 Values	Internet Draft draft-ietf-dhc-dhcpv4-bulk-leasequery-07 IETF Review
DHCP Status Code Type 151 Values	Internet Draft draft-ietf-dhc-dhcpv4-bulk-leasequery-07 IETF Review
GeoConf Option fields - The Altitude (AT) Field	RFC 6225 Standards Action
GeoConf Option fields - The Datum field	RFC 6225 Standards Action
IEEE 802.21 Service Type (MoS DHCPv4 Address and FQDN Sub-Options)	RFC 5678 Standards Action
NetWare/IP Option Type 63 Sub-Option Codes	RFC 2242 ?
NTP Time Source Suboptions	Internet Draft draft-ietf-ntp-dhcpv6-ntp-opt-06 IETF Review
VSS Type Options	RFC 6607 IETF Review
Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
DHCPv6 Mobile IPv6 Sub-option Codes	Internet Draft draft-ietf-mip6-hiopt-17 Standards Action or IESG Approval
DUIDs	RFC 3315 Standards Action (section 24.5)
Dynamic Host Configuration Protocol (DHCP) Message Types	RFC 3315 Standards Action (section 24.2)
Dynamic Host Configuration Protocol (DHCP) Options	RFC 3315 Expert Review and Standards Action (section 24.3) (expert: Ted Lemon)
Home Network Information Option Id-type Codes	Internet Draft draft-ietf-mip6-hiopt-17 Standards Action or IESG Approval
IEEE 802.21 Service Type (MoS DHCPv6 Address and FQDN Sub-Options)	RFC 5678 Standards Action
OPTION_LQ_QUERY option	RFC 5007 Standards Action
Processor Architecture Types	RFC 5970 Expert Review (Expert - Vincent Zimmer)
Status Codes	RFC 3315 Standards Action (section 24.4)
Dynamic Source Routing Protocol (DSR)
DSR Protocol Options	RFC 4728 Expert Review (Experts - David B. Johnson, David A. Maltz and Yih-Chun Hu)
DSR Protocol Route Error Types	RFC 4728 Expert Review (Experts - David B. Johnson, David A. Maltz and Yih-Chun Hu)
Dynamic Symmetric Key Provisioning Protocol (DSKPP)
DSKPP Version Registry	RFC 6063 Standards Action
Key Container Registry	RFC 6063 Specification Required
PRF Algorithm ID Registry	RFC 6063 Specification Required
Status Codes	RFC 6063 Specification Required
EAP-pwd Parameters
Password Preprocessing Methods	RFC 5931 Specification Required
PRF Registry	RFC 5931 IETF Review
PWD-Exch Messages	RFC 5931 IETF Review
Random Function Registry	RFC 5931 Specification Required
Electronic Commerce Language (ECML)
Parameter Values	RFC 4112 IESG Approval
Electronic Commerce Language Version 2 (ECMLv2)
Ecom_Payment_Card_Protocol Registry	RFC 4112 Expert Review (Expert - Donald Eastlake)
Ecom_Payment_Card_Type Registry	RFC 4112 Expert Approval (Expert - Donald Eastlake)
Ecom_Transaction_Type Registry	RFC 4112 Expert Review (Expert - Donald Eastlake)
Email Authentication Parameters
Email Authentication Methods	RFC 5451 IETF Review
Email Authentication Result Names	RFC 5451 IETF Review
Enterprise Numbers
Enterprise Numbers	RFC 2578 First Come First Served (use online template) http://pen.iana.org/pen/PenApplication.page
ENUM - Telephone Number Mapping
Enumservice Registrations	RFC 6117 Specification Required (Expert: Bernie Hoeneisen)
Ethernet Numbers
Ethernet Numbers	RFC 5342 Expert Review or IESG Approval; see RFC (Expert: Dan Romascanu)
Extended Master Session Key (EMSK) Parameters
EMSK PRF Numbers	RFC 5295 IETF Review
User Specific Root Keys (USRK) Key Labels	RFC 5295 Specification Required
Extensible Provisioning Protocol (EPP)
EPP Repository IDs	RFC 3730 FCFS
Extensible Authentication Protocol (EAP)
EAP EXT_Type Numbers	RFC 4764 Designated Expert with Specification Required
EAP Finish/Re-auth Flags	Internet Draft draft-ietf-hokey-erp-aak-10 Standards Action or IESG Approval
EAP Initiate and Finish Attributes	RFC 6696 IETF Consensus
EAP Initiate/Re-auth Flags	Internet Draft draft-ietf-hokey-erp-aak-10 Standards Action or IESG Approval
EAP Initiate/Re-auth-Start Flags	Internet Draft draft-ietf-hokey-erp-aak-10 Standards Action or IESG Approval
EAP Lower Layers	Internet Draft draft-ietf-emu-chbind-16 Expert Review
EAP-AKA and EAP-SIM Parameters	RFC 4187 Specification Required (Expert: Vesa Lehtovirta)
EAP-AKA' AT_KDF Key Derivation Function values	RFC 5448 Specification Required
EAP-FAST Error-TLV Error-Codes	RFC 4851 Specification Required
EAP-FAST GTC Error Codes	RFC 5421 Specification Required
EAP-FAST PAC Attribute Types	RFC 5422 Specification Required
EAP-FAST PAC Types	RFC 5422 Specification Required
EAP-FAST Request-Action TLV Action Codes	RFC 4851 Specification Required
EAP-FAST Server-Trusted-Root Credential Format Types	RFC 5422 Specification Required
EAP-FAST TLV Types	RFC 4851 Specification Required
EAP-GPSK Ciphersuites	RFC 5433 IETF Review
EAP-GPSK Failure Codes	RFC 5433 IETF Review
EAP-GPSK OP Codes	RFC 5433 IETF Review
EAP-GPSK Protected Data Payloads	RFC 5433 IETF Review
EAP-IKEv2 Payloads	RFC 5106 Expert Review
EAP-PAX ADE Type Namespace	RFC 4746 IESG Expert via EAP WG mailing list
EAP-PAX DH Group ID Namespace	RFC 4746 IESG Expert via EAP WG mailing list
EAP-PAX MAC ID Namespace	RFC 4746 IESG Expert via EAP WG mailing list
EAP-PAX Public Key ID Namespace	RFC 4746 IESG Expert via EAP WG mailing list
EAP-POTP Cryptographic Algorithm Identifiers	RFC 4793 Specification Required and IESG Approval
EAP-SAKE messages	RFC 4763 IETF Consensus with Specification Required
EAP-SAKE non-skippable attributes	RFC 4763 IETF Consensus with Specification Required
EAP-SAKE skippable attributes	RFC 4763 IETF Consensus with Specification Required
EAP-TTLS AVP Usage	RFC 5281 IETF Consensus
Message Types	RFC 6696 IETF Consensus
Method Types	RFC 3748 20, 46-191: Designated Expert with Specification Required 192-253: Standards Action 256-4294967295: Allocated after 1-191, on the advice of a designated expert, with specification required. (Expert-EAP Working Group Chair or person designated by EAP Chair)
Packet Codes	RFC 3748 Standards Action
Re-authentication Cryptosuites	RFC 6696 IETF Consensus
Extensible Authentication Protocol (EAP) Channel-Binding Parameters
EAP Channel-Binding Codes	Internet Draft draft-ietf-emu-chbind-16 Standards Action (or Early Allocation per RFC4020)
EAP Channel-Binding Namespaces	Internet Draft draft-ietf-emu-chbind-16 IETF Review
Extensible Authentication Protocol Encrypted Key Exchange (EAP-EKE) Registry
EAP-EKE Channel-Binding Type Registry	RFC 6124 Specification Required
EAP-EKE Diffie-Hellman Group Registry	RFC 6124 Specification Required
EAP-EKE Encryption Algorithm Registry	RFC 6124 Specification Required
EAP-EKE Exchange Registry	RFC 6124 RFC Required
EAP-EKE Failure-Code Registry	RFC 6124 RFC Required
EAP-EKE Identity Type Registry	RFC 6124 Specification Required
EAP-EKE Keyed Message Digest (MAC) Registry	RFC 6124 Specification Required
EAP-EKE Pseudo Random Function Registry	RFC 6124 Specification Required
Extensible Authentication Protocol Mechanism for the Generic Security Services Application Programming Interface (GSS-EAP) Parameters
GSS-EAP Context Flags	Internet Draft draft-ietf-abfab-gss-eap-09 IETF Review or IESG Approval
GSS-EAP Error Codes	Internet Draft draft-ietf-abfab-gss-eap-09 0-127: Standards Action. 128-255: Specification Required.
GSS-EAP Subtoken Types	Internet Draft draft-ietf-abfab-gss-eap-09 Expert Review
FCAST Parameters
FCAST Object Meta-Data Encoding	Internet Draft draft-ietf-rmt-fcast-08 Expert Review
FCAST Object Meta-Data Format	Internet Draft draft-ietf-rmt-fcast-08 Specification Required
FCAST Object Meta-Data Types	Internet Draft draft-ietf-rmt-fcast-08 Expert Review
Federated File System (FedFS) Parameters
FedFS Annotation Keys	Internet Draft draft-ietf-nfsv4-federated-fs-protocol-15 First Come First Served
FedFS Object Identifiers	Internet Draft draft-ietf-nfsv4-federated-fs-protocol-15 Registry Closed
Fibre Channel (FC)
Port Types	RFC 4044 Standard Range: 1-9999 Expert Review and Specification Required (Expert - Claudio DeSanti); Private Use: 10000-99999
File Delivery over Unidirectional Transport (FLUTE) Parameters
FLUTE Content Encoding Algorithms	RFC 6726 Specification Required (Expert: Vincent Roca)
Flow Spec Parameters
Flow Spec Component Types	RFC 5575 0-127: Specification Required. 128-255: First Come First Served.
Foobar AF Numbers
Foobar AF Numbers	RFC 1639 IANA assignment (section 2)
Forwarding and Control Element Separation (ForCES) Parameters
Association Setup Response	RFC 5810 0x00000000-0x0000FFFF IETF Review. 0x00000100-0x0FFFFFFF Specification Required (Experts: Jamal Hadi Salim, Joel Halpern). 0x10000000-0xFFFFFFFF Reserved for Private Use.
Association Teardown Message	RFC 5810 0x00000000-0x0000FFFF IETF Review. 0x00010000-0x7FFFFFFF Specification Required (Experts: Jamal Hadi Salim, Joel Halpern). 0x80000000-0xFFFFFFFFF Reserved for Private Use.
Exception ID	Internet Draft draft-ietf-forces-lfb-lib-12 Specification Required
Header Flags	RFC 5810 IETF Review
Logical Functional Block (LFB) Class Names and Class Identifiers	RFC 5812 0-65535: Standards Action. >65535: First Come First Served with any publically available specification. Class names MUST start with the string "Ext-".
Message Types	RFC 5810 0x00-0x1F IETF Review. 0x20-0x7F Specification Required (Experts: Jamal Hadi Salim, Joel Halpern). 0x80-0xFF Reserved for Private Use.
Metadata ID	Internet Draft draft-ietf-forces-lfb-lib-12 Specification Required
Operation Selection (OPER-TLV) Types	RFC 5810 0x0000-0x00FF IETF Review. 0x0100-0x7FFF Specification Required (Experts: Jamal Hadi Salim, Joel Halpern). 0x8000-0xFFFF Reserved for Private Use.
RESULT-TLV Result Values	RFC 5810 Expert Review (Experts: Jamal Hadi Salim, Joel Halpern)
TLV Types	RFC 5810 0x0000-0x01FF IETF Review. 0x0200-0x7FFF Specification Required (Experts: Jamal Hadi Salim, Joel Halpern). 0x8000-0xFFFF Reserved for Private Use.
Validate Error ID	Internet Draft draft-ietf-forces-lfb-lib-12 Specification ID
FTP parameters
FTP Commands and Extensions	RFC 5797 Registration marked "mandatory" ('m' in the "conf" column): Standards Action. All other registrations: Specification Required. (Expert: John Klensin)
OS specific FTP parameters	RFC 3659 First Come First Served (See Specific Parameters under Operating System Names)
General Internet Signalling Transport (GIST) Parameters
Additional Information Types	RFC 5971 First Come First Served
Error Code 1 Subcodes	RFC 5971 First Come First Served
Error Code 10 Subcodes	RFC 5971 First Come First Served
Error Code 12 Subcodes	RFC 5971 First Come First Served
Error Code 9 Subcodes	RFC 5971 First Come First Served
GIST Error Codes	RFC 5971 First Come First Served
GIST MA-Protocol-IDs	RFC 5971 0-63: IETF Review. 64-119: Expert Review (Expert: Martin Stiemerling).
GIST Message Routing Methods	RFC 5971 0-63: IETF Review. 64-119: Specification Required (Expert: Martin Stiemerling).
GIST Message Types	RFC 5971 0-31: IETF Review. 32-55: Expert Review (Expert: Martin Stiemerling).
GIST Object Types	RFC 5971 0-1023: IETF Review. 1024-1999: Specification Required (Expert: Martin Stiemerling).
NSIS Signaling Layer Protocol (NSLP) Identifiers	RFC 5971 IESG Approval
Generalized Multi-Protocol Label Switching (GMPLS) Signaling Parameters
Actions	RFC 3471 IETF Consensus action or documented in a specification (section 12)
Administrative Status Information Flags	RFC 4783 IETF Standards Action RFC
Association Type	RFC 4872 IETF Standards Action RFC
CWDM Channel Spacing Subregistry	RFC 6205 Standards Action
DWDM Channel Spacing Subregistry	RFC 6205 Standards Action
Ethernet Bandwidth Profiles	RFC 6003 Standards Action
Ethernet Sender TSpec TLVs/Ethernet Flowspec TLVs	RFC 6003 Standards Action
Ethernet Switching Granularities	RFC 6003 Standards Action
Generalized PID (G-PID)	RFC 3471 0-31743 IETF Standards Track RFC 31744-32767 Assigned Temporarily for Experimental Usage 32768-65535 Not Assigned
Grid Subregistry	RFC 6205 Standards Action
Hierarchy Actions	[RFC 6107] Standards Action
Interface_ID Types	RFC 3471 IETF Consensus action or documented in a specification (section 12)
LSP Encoding Types	RFC 3471 0-239 IETF Standards Track RFC 240-255 Assigned temporarily for Experimental Usage (Not registered with IANA)
Switching Types	RFC 3471 0-255 IETF Standards Track RFC
Generic Routing Encapsulation (GRE) Parameters
GRE Protocol Types	RFC 2784 IANA does not assign
GRE Version Numbers	RFC 2784 IETF Consensus
Generic Security Service Application Program Interface (GSS-API) Parameters
GSS-API URN Parameters	Internet Draft draft-ietf-abfab-gss-eap-naming-07 IETF Review or Expert Review
Generic Security Service Application Program Interface (GSS-API) Service Names
GSSAPI/Kerberos/SASL Service Names	RFC 2743 Specification Required. Registrations are restricted to alpha-numeric, plus the following characters: '+', '-' and '.'
Geolocation Policy
Geolocation Policy Location Profile Names	RFC 6772 Specification Required
Geopriv HTTP Enabled Location Delivery (HELD) Parameters
HELD Error Codes	RFC 5985 Standards Action
Geopriv Location Object Registries
Method Tokens associated with the PIDF-LO Object	RFC 4119 First Come First Serve
PIDF-LO Civic Address Considerations Registry	RFC 5774 Expert Review (Expert: Not designated)
XML Namespaces for 'provided-by' elements for use with PIDF-LO objects	RFC 4119 Expert Review (Allison Mankin-Primary, Jon Peterson-Secondary)
Geopriv Location Type Registries
CAtypes	RFC 4776, RFC 6848 Type=A: IETF Review; Type=B: Expert Review (Martin Thomson)
Location Type Registry	RFC 4589 Expert Review (Martin Thomson) Section 5.1
Global Switch Management Protocol version 3 (GSMPv3) Parameters
GSMPv3 Adaptation Type Name Space	RFC 3292 0x000-0x2FF: IETF consensus 0x300-0xFFF: FCFS (section B5)
GSMPv3 Event Flag Type Name Space	RFC 3292 Expert Review (Experts - Stefaan De Cnodder and Avri Doria)
GSMPv3 Failure Response Message Name Space	RFC 3292 0-59, 80-127, 160-255: IETF consensus 60-79, 128-159: Reserved for vendor private use (section B4)
GSMPv3 Label Type Name Space	RFC 3292 0x000-0xAFF: IETF consensus 0xB00-0xEFF: RFC Required 0xF00-0xFFF: Reserved for vendor private use
GSMPv3 Message Type Name Space	RFC 3292 0-99: IETF consensus 100-199: RFC 200-249: RFC 250-255: Reserved for vendor private use (section B1)
GSMPv3 Model Type Name Space	RFC 3292 0: IETF consensus 1-200: RFC 201-255: Reserved for vendor private use (B6)
GSMPv3 Port Type Name Space	RFC 3292 0-127: IETF consensus 128-255: RFC (section B7)
GSMPv3 Result Type Name Space	RFC 3292 Expert review (Experts - Stefaan De Cnodder and Avri Doria)
GSMPv3 Service ID Type Name Space	RFC 3292 0-1023: IETF consensus 1024-65535: RFC (section B8)
GSMPv3 Traffic Control Type Name Space	RFC 3292 Expert Review (Experts - Stefaan De Cnodder and Avri Doria)
Global Switched Telephone Network (GSTN) Extensions
Qual2-Label	RFC 2846 Specification Required
Qualif-Type 1	RFC 2846, RFC 3191 Specification Required
Service Selector	RFC 2846, RFC 3191 Specification Required
Group Domain of Interpretation (GDOI)
GAP Payload Policy Attributes	RFC 6407 Standards Action
GDOI ID Payload Type Values	RFC 3547 Standards Action
Key Download Type Values	RFC 3547 Standards Action
SA KEK Payload Values	RFC 3547 Standards Action
SA TEK Payload Values	RFC 3547 Standards Action
Hash Function Textual Names
Hash Function Names	RFC 4572 Standards-track RFCs which update or obsolete [RFC3279]
Host Identity Protocol (HIP) Parameters
DI-Types	RFC 5201 IETF Consensus
Group IDs	RFC 5201 IETF Consensus
HIP Certificate Types	RFC 6253 IETF Review
HIP Transport Modes	RFC 6261 IETF Review or IESG Approval
HIP Version	RFC 5201 IETF Consensus
HIP Via Flags	RFC 6028 IETF Review or IESG Approval
Notify Message Types	RFC 5201 1-50: IETF Consensus. 51-8191: First Come First Served with Specification Required. 8192-16383: Private Use. 16384-40959: First Come First Served with Specification Required. 40960-65535: Private Use.
Packet Types	RFC 5201 IETF Consensus
Parameter Types	RFC 5201 0-1023: IETF Consensus. 1024-32767: First Come First Served with Specification Required. 32768-49141: Private Use. 49142-61439: First Come First Served with Specification Required. 61440-65535: IETF Consensus.
Registration Failure Types	RFC 5203 0-200: IETF Consensus. 201-255: Private Use.
Registration Types	RFC 5203 0-200: IETF Consensus. 201-255: Private Use.
Suite IDs	RFC 5201 IETF Consensus
Hypertext Transfer Protocol (HTTP) Digest Algorithm Values
HTTP Digest Algorithm Values	RFC 3230 RFC Required or Specification Required (Expert: James Manger)
Hypertext Transfer Protocol (HTTP) Parameters
Content-Coding Values	RFC 2616 First Come First Served with specification recommended (Primary Expert: Roy Fielding; Secondary Expert: Mark Nottingham)
HTTP Forwarded Parameters	Internet Draft draft-ietf-appsawg-http-forwarded-10 IETF Review
HTTP Preferences	Internet Draft draft-snell-http-prefer-18 Specification Required
Transfer-Coding Values	RFC 2616 First Come First Served with specification recommended (Primary Expert: Roy Fielding; Secondary Expert: Mark Nottingham)
Hypertext Transfer Protocol (HTTP) Status Codes
HTTP Status Codes	RFC 2817 IETF Consensus
Hypertext Transfer Protocol (HTTP) Upgrade Tokens
HTTP Upgrade Tokens	RFC 2817 FCFS (must follow rules set forth in BCP 26) (section 7)
IANA-Maintained MIBs
IANA Address Family Numbers MIB	(?) (?)
IANA Charset MIB	RFC 3808 See Character Sets
IANA Entity MIB	RFC 6933 Expert Review (Primary Expert: Dan Romascanu; Secondary Expert: Bert Wijnen)
IANA Finisher MIB	RFC 3806 Expert Review (Experts: Ira McDonald, Michael Sweet)
IANA GMPLS TC MIB	RFC 4802 See individual GMPLS registry procedures
IANA ifTypes MIB	RFC 2863 Expert Review (Expert: Dan Romascanu)
IANA IP Route Protocol MIB	RFC 2932 RFC or expert review (Expert - Dave Thaler)
IANA IPPM Metrics Registry MIB	RFC 4148, RFC 6248 This module has been designated Obsolete. The registry will no longer be updated, and the current contents will be maintained as-is.
IANA ITU Alarm TC MIB	RFC 3877 Expert Review (Expert: Not designated)
IANA Language MIB Definitions	RFC 3165 Expert Review (Experts - Juergen Schoenwaelder and David Levi)
IANA MALLOC MIB	RFC 3559 RFC or designated expert review. (section 4) (Expert - Dave Thaler)
IANA MAU MIB	RFC 4836 Expert: Operations and Management Area Director (Dan Romascanu)
IANA Printer MIB	RFC 3805 Expert Review (Experts: Ira McDonald, Michael Sweet)
IANA Tn3270eTC MIB	RFC 2561 Working Group Review (see DESCRIPTION clause associated with the MODULE-IDENTITY statement)
iCalendar Elements
Actions	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Calendar User Types	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Classifications	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Components	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Free/Busy Time Types	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Methods	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Parameters	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Participation Roles	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Participation Statuses	RFC 5545 Expert Review with RFC Required. Note: a Standards Track RFC is REQUIRED for the registration of Participation Status values to be used in "VEVENT" calendar components. (Experts: Bernard Desruisseaux, Cyrus Daboo)
Properties	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
Relationship Types	RFC 5545 Expert Review with RFC Required (Experts: Bernard Desruisseaux, Cyrus Daboo)
REQUEST-STATUS Values	RFC 5546 Expert Review with RFC Required
Value Data Types	RFC 5545 Expert Review with RFC Required. Note: a Standards Track RFC is REQUIRED for the registration of new Value Data Types that modify existing properties. (Experts: Bernard Desruisseaux, Cyrus Daboo)
IEEE 802 Numbers
IEEE 802 Numbers	N/A Assigned by the IEEE Registration Authority. See http://standards.ieee.org/regauth/index.html.
Instance Manipulation Values
Instance Manipulation Values	RFC 3229 Specification Required
Instant Message Disposition Notification (IMDN) Headers
IMDN Headers	RFC 5438 Standards Action
Instant Messaging SRV Protocol
Label Registry	RFC 3861 Specification Required
Integrated Service Parameters
Compression Hints	RFC 3006 IETF Consensus
Parameter Names	RFC 2216 1-127: Parameters defined in RFC 2215 128-254: Parameters defined by author of service specification document (Service and Data Element Naming)
Service Names	RFC 2216 2-127: RFC 127 and above: Experimental use (Service and Data Element Naming)
Inter-Asterisk eXchange (IAX) Parameters
IAX Authentication Methods	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Calling Presentation	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Calling Type of Number	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Cause Codes	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Control Frame Subclass	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Control Frames	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Dialplan Status Flags	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Encryption Methods	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Frame Types	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX HTML Command Subclasses	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Information Elements	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Media Formats	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Meta Commands	RFC 5457 Expert Review (Expert: Cullen Jennings)
IAX Type of Network	RFC 5457 Expert Review (Expert: Cullen Jennings)
Interactive Connectivity Establishment (ICE)
ICE Options	RFC 6336 Specification Required
ICE Transport Protocols	RFC 6544 IETF Review or IESG Approval
Internationalized Domain Names in Applications (IDNA) Parameters
IDNA Contextual Rules	RFC 5892 IETF Review
IDNA Derived Properties	RFC 5892 Expert Review (expert: Patrik Faltstrom)
Internet Application Protocol
Collation Registry	RFC 4790 Expert review via mailing list (Expert - Arnt Gulbrandsen)
Internet Control Message Protocol (ICMP) Parameters
Code Fields	RFC 2780 IESG Approval or Standards Action
ICMP Extension Object Classes	RFC 4950 0-246 First Come First Serve 247-255 Private Use
ICMP Type Numbers	RFC 2780 IESG Approval or Standards Action
Internet Control Message Protocol version 6 (ICMPv6) Parameters
"Code" Fields	RFC 4443 Standards action or IESG approval
Address Registration Option Status Values	Internet Draft draft-ietf-6lowpan-nd-21 Standards Action
Certificate Option (Type 16) Cert Type field	RFC 3971 Standards Action
FMIPv6 Message Types	RFC 5568 RFC Required
IPv6 Neighbor Discovery Option Formats	RFC 4861 IETF RFC Publication
IPv6 Type Numbers	RFC 4443 IETF RFC Publication
Qtypes	RFC 4620 IETF Consensus
Trust Anchor Option (Type 15) Name Type field	RFC 3971, RFC 6496 Standards Action or IESG Approval
Internet Group Management Protocol (IGMP) Type Numbers
"Code" Fields	RFC 3228 IESG approval or standards action (section 2)
IGMP Type Numbers	RFC 3228 IESG approval or standards action (section 2)
Internet Key Exchange (IKE) Attributes
IKE Attributes	RFC 2409 RFC (standards track) (section 11.1)
Internet Key Exchange Version 2 (IKEv2) Parameters
Authentication Methods	RFC 5996 Expert Review (Expert-Tero Kivinen)
Certificate Encodings	RFC 5996 Expert Review (Expert-Tero Kivinen)
Configuration Payload Attribute Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Configuration Payload CFG Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Diffie-Hellman Transform IDs	RFC 5996 Expert Review (Expert-Tero Kivinen)
Encryption Transform IDs	RFC 5996 Expert Review (Expert-Tero Kivinen)
Exchange Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Gateway Identity Types	RFC 5685 Expert Review (Expert-Tero Kivinen)
Identification Payload ID Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
IKEv2 Secure Password Methods	Internet Draft draft-kivinen-ipsecme-secure-password-framework-03 Expert Review
Integrity Algorithm Transform IDs	RFC 5996 Expert Review (Expert-Tero Kivinen)
Notification IPCOMP Transform IDs	RFC 5996 Expert Review (Expert-Tero Kivinen)
Notify Message Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Payload Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Pseudo-random Function Transform IDs	RFC 5996 Expert Review (Expert-Tero Kivinen)
ROHC Attribute Types	RFC 5857 Expert Review (Expert: Tero Kivinen)
Security Protocol Identifiers	RFC 5996 Expert Review (Expert-Tero Kivinen)
Traffic Selector Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Transform Attribute Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Transform Types	RFC 5996 Expert Review (Expert-Tero Kivinen)
Internet Message Access Protocol (IMAP)
IMAP Capabilities	RFC 3501 IETF Consensus
IMAP Keywords	RFC 5788 Expert Review (Experts: Arnt Gulbrandsen, Barry Leiba)
IMAP List Extended	RFC 5258 IANA registration template is at [RFC5258] section 9.3
IMAP METADATA Mailbox Entry Registry	RFC 5464 Standards Track or IESG-Approved Experimental RFC
IMAP METADATA Server Entry Registry	RFC 5464 Standards Track or IESG-Approved Experimental RFC
IMAP Response Codes	RFC 5530 Expert Review (Experts: Arnt Gulbrandsen and Dave Cridland)
IMAP Threading Algorithms	RFC 5256 Standards Track or IESG-Approved Experimental RFC
IMAP URLAUTH Access Identifiers and Prefixes	RFC 5593 IETF Review
IMAP URLAUTH Authorization Mechanism Registry	RFC 4467 Standards Track or IESG approved experimental RFC
Internet Message Store Events
Event Names	RFC 5423 Name starts wth "vnd.," intended for private use: First Come First Served. Name doesn't start with "vnd.," intended for interoperable use: IETF Review.
Event Parameters	RFC 5423 Name starts wth "vnd.," intended for private use: First Come First Served. Name doesn't start with "vnd.," intended for interoperable use: IETF Review.
Internet Open Trading Protocol (IOTP) Codes
IOTP Codes	RFC 2801 (?) (Expert-David Burdett)
Internet Printing Protocol (IPP) Registrations
Attribute Group Tags	RFC 2911 Expert Review (Experts: Ira McDonald, Michael Sweet)
Attribute Syntaxes	RFC 2911 Expert Review (Experts: Ira McDonald, Michael Sweet)
Attributes	RFC 3380 Expert Review (Experts: Ira McDonald, Michael Sweet)
Enum Attribute Values	RFC 2911 type1: IETF consensus type2: Mailing list and expert review (Experts: Ira McDonald, Michael Sweet) type3: Expert review (possible mailing list) (Experts: Ira McDonald, Michael Sweet) (section 6.1)
Keyword Attribute Values	RFC 2911 type1: IPP specification document revision or IETF standards track document type2: Mailing list and expert review (Experts: Ira McDonald, Michael Sweet) type3: Mailing list and expert review (Experts: Ira McDonald, Michael Sweet)
Operations	RFC 2911 RFC (standards track) and expert review/assignment (section 6.4) (Experts: Ira McDonald, Michael Sweet)
Out-of-Band Attribute Group Tags	RFC 2911 Expert review/assignment (section 6.6) (Experts: Ira McDonald, Michael Sweet)
Status Codes	RFC 2911 Expert review/assignment (section 6.6) (Experts: Ira McDonald, Michael Sweet)
Internet Protocol (IP) Option Numbers
IP Option Numbers	RFC 2780 IESG Approval, IETF Consensus or Standards Action
IP Time to Live Parameter	RFC (?) (?)
Recommended values for TOS	RFC (?) (?)
Internet Protocol (IP) Protocol Numbers
Internet Protocol (IP) Protocol Numbers	RFC 5237 Standards Action or IESG Approval
Internet Protocol (IP) Version Number
IP TOS Paramters	RFC (?) (?)
IP Version Number	RFC 2780 IETF Standards Action
Internet Protocol version 4 (IPv4) Address Space
IPv4 Address Space	RFC 2050 IANA allocates to Regional Internet Registries (RIRs) based on established need. (section 1.3)
IPv4 Special Purpose Address Registry	RFC 5736, RFC 6890 IETF Review
Internet Protocol version 4 (IPv4) Router Alert Option Values
IPv4 Router Alert Option Values	RFC 5350 IETF Review
Internet Protocol version 4 (IPv4) Type of Service (TOS) Byte and Internet Protocol version 6 (IPv6) Traffic Class Octet
IPv4 TOS Byte and IPv6 Traffic Class Octet	RFC 3168 RFC Required
Internet Protocol version 6 (IPv6) Address Space
IPv6 Address Space	RFC 2373 IESG Approval
Internet Protocol version 6 (IPv6) Anycast Address Allocations
IPv6 Anycast Address Allocations	RFC 4291, RFC 2526 IESG Approval
IPv6 Anycast Subnet-Router Anycast Address	RFC 4291 IESG Approval
Internet Protocol version 6 (IPv6) Global Unicast Allocations
IANA IPv6 Special Purpose Address Registry	RFC 4773, RFC 6890 IETF Review
IPv6 Global Unicast Allocations	RFC 2928 Contact IANA for information.
Internet Protocol Version 6 (IPv6) Low Power Personal Area Network Parameters
Dispatch Type Field	RFC 4944 Specification Required
LOWPAN_NHC Header Type	RFC 6282 IETF Review
Short Address Fields	RFC 4944 Specification Required
Internet Protocol version 6 (IPv6) Multicast Address Allocations
Address Allocations	RFC 3307 Expert Review (Expert-Stig Venaas)
Internet Protocol version 6 (IPv6) Parameters
Destination Options and Hop-by-Hop Options	RFC 2460, RFC 2780 IESG Approval, IETF Consensus or Standards Action
Next Header Types	RFC 2460, RFC 2780 Please see: http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
Routing Types	RFC 2460, RFC 5871 IETF Review or IESG Approval
RPL-option-TLV	RFC 6553 IETF Review
TaggerId Types	RFC 6621 IETF Review
Internet Protocol version 6 (IPv6) Router Alert Option Values
IPv6 Router Alert Option Values	RFC 2711 IETF consensus (section 5)
Internet Protocol version 6 (IPv6) Sub-Top Level Aggregation (TLA) Identifier Assignments
IPv6 Sub-TLA Assignments (DEPRECATED)	RFC 2450 IANA assignment to registries. Registries assign Sub-TLA's ID's to organizations meeting requirements. (section 5.1)
Internet Security Association and Key Management Protocol (ISAKMP) Identifiers
IPSEC AH Transform Identifiers	RFC 2407 0-248 Standards Action; 249-255 Reserved for private use amongst cooperating systems
IPSEC ESP Transform Identifiers	RFC 2407 0-248 Standards Action; 249-255 Reserved for private use amongst cooperating systems
IPSEC Identification Type	RFC 2407 0-248 Standards Action; 249-255 Reserved for private use amongst cooperating systems
IPSEC IPCOMP Transform Identifiers	RFC 2407 0-47 Standards Action; 48-63 Reserved for private use amongst cooperating systems
IPSEC ISAKMP Transform Identifiers	RFC 2407 0-248 Standards Action; 249-255 Reserved for private use amongst cooperating systems
IPSEC Labeled Domain Identifiers	RFC 2407 First Come First Served
IPSEC Notify Message Type	RFC 2407 8192-16000 and 24756-32000 Specification Required; 16001-16383 and 32001-32767 Reserved for private use amongst cooperating systems
IPSEC Security Association Attributes	RFC 2407 1-32000 Specification Required; 32001-32767 Reserved for private use amongst cooperating systems
IPSEC Security Protocol Identifiers	RFC 2407 0-248 Standards Action; 249-255 Reserved for private use amongst cooperating systems
IPSEC Situation Definition	RFC 2407 Standards Action
ISAKMP Domain of Interpretation (DOI)	RFC 2408 Standards Action
Next Payload Types	RFC 2408 0-127 IETF Review 128-255 Reserved for private use amongst cooperating systems
Signature Encoding Algorithm Values	RFC 4359 Standards Action
Internet Small Computer System Interface (iSCSI) Parameters
iSCSI Asynchronous Events	RFC 5048 Standards Action
iSCSI authentication methods registry	RFC 3720 RFC Required
iSCSI digests registry	RFC 3720 RFC Required
iSCSI extended key registry	RFC 3720 RFC Required
iSCSI Login Response Status Codes	RFC 5048 Standards Action
iSCSI Login/Text Keys	RFC 5046, RFC 5048 Standards Action
iSCSI Opcodes	RFC 5048 Standards Action to define the semantics of the opcode; Expert Review to select the specific opcode(s)
iSCSI Reject Reason Codes	RFC 5048 Standards Action
iSCSI Task Management Function Codes	RFC 5048 Standards Action
iSER Opcodes	RFC 5048 Standards Action
SRP_GROUP key values	RFC 3720 Specification Required
Internet Storage Name Service (iSNS)
Block Storage Protocols	RFC 4171 Expert Review (by IPS WG Chair or designated expert - David Black)
Standard iSNS Attributes	RFC 4171 IETF Consensus
Internet/Xerox Network System (XNS) Protocol Mappings
Internet/XNS Protocol Mappings	RFC 1764 This registry is for information only. No registrations will be accepted.
Intrusion Detection Exchange Protocol (IDXP)
Options	RFC 4767 Expert Review (Expert - Ben Feinstein)
Intrusion Detection Message Exchange Format (IDMEF) Parameters
Attribute Values	RFC 4765 Specification Required by RFC
Class Names and Attribute Names	RFC 4765 IETF Consensus
IP Flow Information Export (IPFIX)
Classification Engine IDs (Value 101)	RFC 6759 Expert Review (IE Doctors: Brian Trammell, Nevil Brownlee, Juergen Quittek, Paul Aitken)
flowSelectorAlgorithm (Value 390)	Internet Draft draft-ietf-ipfix-flow-selection-tech-18 Expert Review
IPFIX Information Element Data Types	RFC 5610 Standards Action
IPFIX Information Element Semantics	RFC 5610 Standards Action
IPFIX Information Element Units	RFC 5610 Expert Review (IE Doctors: Brian Trammell, Nevil Brownlee, Juergen Quittek, Paul Aitken)
IPFIX Information Elements	Internet Draft draft-ietf-ipfix-information-model-rfc5102bis-10 Expert Review (IE Doctors: Brian Trammell, Nevil Brownlee, Juergen Quittek, Paul Aitken)
IPFIX MPLS label type	Internet Draft draft-ietf-ipfix-information-model-rfc5102bis-10 Expert Review (IE Doctors: Brian Trammell, Nevil Brownlee, Juergen Quittek, Paul Aitken)
IPFIX Set IDs	RFC 5101 Standards Action
IPFIX Structured Data Types Semantics	RFC 6313 Standards Action
IPFIX Version Numbers	RFC 5101 Standards Action
IPS Protocol
Protocol Number field	RFC 3643 Standards Track RFCs approved by the IESG
IPSec
asn1-modules	RFC 4301 Specification Required
IPsec Resource Record Parameters
Algorithm Type Field	RFC 4025 IETF Consensus
Gateway Type Field	RFC 4025 Standards Action
IPv6 Multicast Permanent Group Identifiers
Group Identifier Values	RFC 3307 Expert Review (Expert - Stig Venaas)
IS-IS
Application Identifiers for TLV 251	RFC 6823 Expert Review (Experts: David Ward, Chris Hopps)
Bandwidth Constraints Model Identifiers	RFC 4124 Specification Required
IS-IS Authentication Type Codes for TLV 10	RFC 5304 Expert Review (Experts: David Ward, Chris Hopps)
IS-IS Multi-Topology ID Values	RFC 5120 Expert Review (Experts: David Ward, Chris Hopps)
IS-IS PDU Registry	RFC 6326 IETF Review (Experts: David Ward, Chris Hopps)
link-attribute bit values for sub-TLV 19 of TLV 22	RFC 5029 Standards Action
Sub-TLVs for TLV 135	RFC 5305 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 142	RFC 6326 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 143	RFC 6326 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 144	RFC 6329 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 22, 141, and 222	RFC 5305, RFC 5316 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 235	RFC 5120 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 236	RFC 5308 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 237	RFC 5305, RFC 5120 Expert Review (Experts: David Ward, Chris Hopps)
Sub-TLVs for TLV 242	RFC 5305, RFC 4971 Expert Review (Experts: David Ward, Chris Hopps)
TLV Codepoints	RFC 3563, RFC 6233 Expert Review (Experts: David Ward, Chris Hopps)
Java Message Service (JMS) URI Scheme Variants
JMS URI Scheme Variants	RFC 6167 First Come First Served
Kerberized Internet Negotiation of Keys (KINK)
Error Codes	RFC 4430 Standards Action or non standards-track RFCs with Expert Review. (Though full specification may be a public and permanent document of a standards body other that the IETF, an RFC referring to it is needed). (Experts - Shoichi Sakane and Ken'ichi Kamada)
Message Types	RFC 4430 Standards Action or non standards-track RFCs with Expert Review. (Though full specification may be a public and permanent document of a standards body other that the IETF, an RFC referring to it is needed). (Experts - Shoichi Sakane and Ken'ichi Kamada)
Next Payload Types	RFC 4430 Standards Action or non standards-track RFCs with Expert Review. (Though full specification may be a public and permanent document of a standards body other that the IETF, an RFC referring to it is needed). (Experts - Shoichi Sakane and Ken'ichi Kamada)
Kerberos Parameters
Checksum Type Numbers	RFC 3961 Standards Action or Expert Review (Expert-Ken Raeburn)
Encryption Type Numbers	RFC 3961 Standards Action or Expert Review (Expert-Ken Raeburn)
FAST Armor Types	RFC 6113 Standards Action
FAST Options	RFC 6113 Standards Action
Kerberos Message Transport Types	RFC 6784 IETF Review
Kerberos TCP Extensions	RFC 5021 IESG Approval or Standards Action
Pre-authentication and Typed Data	RFC 6113 Expert Review (expert may find that IETF Review is required) (Experts: Sam Hartman - primary, Larry Zhu - secondary)
Well-Known Kerberos Principal Names	Internet Draft draft-ietf-krb-wg-naming-07 Specification Required
Well-Known Kerberos Realm Names	Internet Draft draft-ietf-krb-wg-naming-07 Specification Required
Kerberos V GSS-API Mechanism Parameters
Kerberos V GSS-API Mechanism Extension Types	RFC 6542 0x00000000 - 0x000003FF: IETF Review. 0x00000400 - 0xFFFFF3FF: Specification Required.
Keying and Authentication for Routing Protocols (KARP) Parameters
Cryptographic Protocol ID	RFC 6506 Standards Action
KeyNote Parameters
KeyNote app_domain Identifiers	RFC 2704 First Come First Served
KeyNote Public Key Format Identifiers	RFC 2704 Specification Required
KeyNote Signature Algorithm Identifiers	RFC 2704 Specification Required
Label Distribution Protocol (LDP) Parameters
Experiment ID Name Space	RFC 5036 0x00000000 - 0xefffffff: FCFS 0xf0000000 - 0xffffffff: Private use (section 4.5)
Forwarding Equivalence Class (FEC) Type Name Space	RFC 5036 0-127: IETF consensus 128-191: FCFS 192-255: Private use (section 4.3)
LDP MP Opaque Value Element basic type	RFC 6388 Standards Action (Early Allocation available per RFC 4020)
LDP MP Opaque Value Element extended type	RFC 6388 0-32767: Standards Action (Early Allocation available per RFC 4020). 32768-65535: First Come First Served.
LDP MP Status Value Element type	RFC 6388 Standards Action (Early Allocation available per RFC 4020)
Message Type Name Space	RFC 5036 0x0000-0x3DFF: IETF consensus 0x3E00-0x3EFF: Vendor private use 0x3F00-0x3EFF: Experimental use (section 4.1)
Status Code Name Space	RFC 5036 0x00000000-0x1FFFFFFF: IETF consensus 0x20000000 - 0x3EFFFFFF: FCFS 0x3F000000 - 0x3FFFFFFF: Private Use (section 4.4)
Type, Length, and Value (TLV) Type Name Space	RFC 5036 0x0000-0x3DFF: IETF consensus 0x3E00-0x3EFFF: Vendor private use 0x3F00-0x3EFF: Experimental use (section 4.1)
Language Tags
Language Subtag Registry	RFC 5646 Expert Review (Experts - Michael Everson and Doug Ewell)
Language Subtag Registry - Registration Templates	RFC 5646 These are the Registration Templates only.
Language Tag Extensions Registry	RFC 5646 IESG Approval
Language Tags - OBSOLETE	RFC 4646 No further registrations in this registry.
Language Tags Directory - OBSOLETE	RFC 4646 No further registrations in this registry.
Layer Two Tunneling Protocol (L2TP) Parameters
ATM Alarm Status AVP (Attribute Type 88) Values	RFC 4454 Circuit Status Reason values for the SLI message - Expert Review General ATM Alarm failures - Expert Review
ATM-Specific Sublayer bits	RFC 4454 IETF Consensus
Bearer Field definition	RFC 2661 Standards Action
Circuit Status Bits	RFC 3931 IETF Consensus
Control Message Attribute Value Pairs	RFC 3438 Expert review (section 2.1) Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
Data Sequencing Level	RFC 3931 Expert Review (Expert: Not designated)
Default L2-Specific Sublayer bits	RFC 3931 IETF Consensus
Framing Field definition	RFC 2661 Standards Action
L2-Specific Sublayer Type	RFC 3931 Expert Review (Expert: Not designated)
L2TPv3 Pseudowire Types	RFC 3931 0-32767 Expert Review (Expert: Not designated) 32768-65535 First Come First Served
Leading Bits of the L2TP AVP Header	RFC 2661, RFC 3931 Standards Action
Leading Bits of the L2TP Message Header	RFC 2661, RFC 3931 Standard Action
Message Type AVP (Attribute Type 0) Values	RFC 3438 Expert Review (section 2.2) Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
PPP Disconnect Cause Code (Attribute Type 46) Values	RFC 3145 0-32767: IESG Approval. 32768-65279: First Come First Served.
Proxy Authen Type AVP (Attribute Type 29) Values	RFC 2661 First Come First Served
Result Code AVP (Attribute Type 1) Values	RFC 3438 Expert review (section 2.3)Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
Level of Assurance (LoA) Profiles
Level of Assurance Profiles	RFC 6711 Expert Review (John Bradley, Joni Brennan, Jim Fenton, Leif Johansson and Lucy Lynch)
Licklider Transmission Protocol (LTP) Parameters
LTP Ciphersuites	RFC 5327 Specification Required
LTP Extension Tags	RFC 5326 Specification Required
Lightweight Directory Access Protocol (LDAP)
Attribute Description Options	RFC 4520 x- Private Use (can not be registered) e- Reserved for Experiments, First Come First Serve All others: Standards Action or Expert Review with Specification (Expert - Kurt Zeilenga)
Bind Authentication Method	RFC 4520 0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-)(Expert - Kurt Zeilenga) 4096-16383 First Come First Serve (Shall start with e-) 16384 and higher Private Use (Shall start with x-)
Internet Directory Numbers	RFC 2578, RFC 4520 Specification Required
LDAP authzid prefixes	RFC 4520 x- Private Use e- Reserved for Experiments, First Come First Serve All others, Standards Action or Expert Review with Specification Required (Expert - Kurt Zeilenga)
LDAP Filter Choices	RFC 4520 Standards Action
LDAP ModifyRequest Operations	RFC 4520 0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-)(Expert - Kurt Zeilenga) 4096-16383 First Come First Serve (Shall start with e-) 16384 and higher Private Use (Shall start with x-)
LDAP Search Scopes	RFC 4520 0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-)(Expert - Kurt Zeilenga) 4096-16383 First Come First Serve (Shall start with e-) 16384 and higher Private Use (Shall start with x-)
LDAP Syntaxes	RFC 4520 First Come First Serve with Specification Required
LDAPMessage types	RFC 4520 Standards Action
Object Identifier Descriptors	RFC 4520 x- Private Use (can not be registered) e- Reserved for Experiments, First Come First Serve All others: Expert Review (Expert - Kurt Zeilenga)
pcimSchema LDAP Descriptors	RFC 3703 (tbd)
Protocol Mechanisms	RFC 4520 First Come First Serve
Result Code values	RFC 4520 0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-)(Expert - Kurt Zeilenga) 4096-16383 First Come First Serve (Shall start with e-) 16384 and higher Private Use (Shall start with x-)
Link Management Protocol (LMP)
LMP Behavior Configuration Flags	Internet Draft draft-ietf-ccamp-lmp-behavior-negotiation-11 Standards Action
LMP Message Types	RFC 4204 21-127: Standards Action 128-247: Expert Review (Expert - Dimitri Papadimitriou)
LMP Object Class and Class Type (C-Type)	RFC 4204 See each individual type. (Expert - Dimitri Papadimitriou, if applicable)
Link Relations
Link Relation Application Data	RFC 5988 Expert Review (Experts: Mark Nottingham, Julian Reschke, Jan Algermissen)
Link Relation Types	RFC 5988 Expert Review (Experts: Mark Nottingham, Julian Reschke, Jan Algermissen)
Locally-Served DNS Zones
IPv4 Locally-Served DNS Zone Registry	RFC 6303 IETF Review
IPv6 Locally-Served DNS Zone Registry	RFC 6303 IETF Review
Location-to-Service Translation (LoST)
LoST Location Profile Registry	RFC 5222 Standards Action
Machine Names
Machine Names	RFC (?) (?)
Mail Parameters
Address Literal Tags	RFC 5321 Standards Action
Diagnostic Types	RFC 3461, RFC 3464 RFC Required; Please see the following: http://www.iana.org/assignments/dsn-types
Mail Address Types	RFC 3461, RFC 3464 RFC Required; Please see the following: http://www.iana.org/assignments/dsn-types
Mail Encoding Header Field Keywords	RFC 1505 Specification Required
Mail Transmission Types	RFC 821, RFC 822, RFC 5321 Standards-Track or IESG-Approved Experimental RFC
MTA Name Types	RFC 3461, RFC 3464 RFC Required; Please see the following: http://www.iana.org/assignments/dsn-types
SMTP PRIORITY extension Priority Assignment Policy	Internet Draft draft-melnikov-smtp-priority-21 Specification Required
SMTP Service Extensions	RFC 5321 Standards-Track or IESG-Approved Experimental RFC
Mangement Information Base (MIB)
For all IANA maintained MIBs, please look under "IANA Maintained MIBs"	n/a n/a
Other MIB related registries can be found at "Structure of Management Information (SMI) Numbers"	n/a n/a
Media Control Channel Framework Parameters
Control Packages	RFC 6230 RFC Required
Header Fields	RFC 6230 RFC Required
IVR Prompt Variable Types for Control Packages	RFC 6231 RFC Required
MEDIACTRL Interactive Voice Response Control Package Status Codes	RFC 6623 Standards Action
Method Names	RFC 6230 RFC Required
Status Codes	RFC 6230 RFC Required
Media Feature Tags
features.global-tree	RFC 2506 Expert Review (Expert - Paul Kyzivat)
features.ietf-tree	RFC 2506 IETF Consensus
features.sip-tree	RFC 3840 IETF Consensus
features.uri-tree	RFC 2506 Unregistered (formed from uri)
Media Gateway Control Protocol (MGCP)
List of Extension Digit Map Letters	RFC 3435 Expert review (section C.1) (Expert-Brian Rosen)
LocalConnectionsOptions Sub-Registry	RFC 3435 Expert review (section C.3) (Expert-Brian Rosen)
MGCP Package Sub-Registry	RFC 3435 Expert review (section C.1) (Expert-Brian Rosen)
Media Independent Handover
MIH Table of Mappings From Service Field Values to Transport Protocols	RFC 5679 Standards Action
Media Resource Control Protocol Version 2 (MRCPv2) Parameters
Grammar Reference List Parameters	RFC 6787 Specification Required
MRCPv2 Header Fields	RFC 6787 Standards Action
MRCPv2 Methods and Events	RFC 6787 Standards Action
MRCPv2 Resource Types	RFC 6787 Standards Action
MRCPv2 Status Codes	RFC 6787 Specification Required
MRCPv2 Vendor-Specific Parameters	RFC 6787 First Come First Served
Megaco/H.248 Packages
Error Codes	RFC 5125, RFC 5615 Expert Review (Expert: Christian Groves)
Private Packages	RFC 5125, RFC 5615 Expert Review (Expert: Christian Groves)
Profile Names	RFC 5125, RFC 5615 Expert Review (Expert: Christian Groves)
Public Packages	RFC 5125, RFC 5615 Expert Review (Expert: Christian Groves)
Service Change Reasons	RFC 5125, RFC 5615 Expert Review (Expert: Christian Groves)
Message Disposition Notification (MDN) Parameters
MDN-Disposition-Modifier-Names	RFC 3798 Specification required (expert: Tony Hansen)
MDN-Disposition-Notification-Option-Names	RFC 3798 Specification required
MDN-Extension-Field-Names	RFC 3798 Specification required
Message Header Fields
Permanent Message Header Fields	RFC 3864 Expert Review (Graham Klyne)
Provisional Message Header Fields	RFC 3864 Expert Review (Graham Klyne)
Message Session Relay Protocol (MSRP) Parameters
Header Fields	RFC 4975 RFC Publication
Methods	RFC 4975 RFC Publication
Status Codes	RFC 4975 RFC Publication
Message Tracking Query Protocol (MTQP)
Options	RFC 3887 Options whose names do not begin with "vnd.": Standards track or IESG approved experimental RFC Options with "vnd.": First Come First Served
Messaging Abuse Reporting Format (MARF) Parameters
Feedback Report Header Fields	RFC 5965 Specification Required
Feedback Report Type Values	RFC 5965 Specification Required
Milnet Parameters
Milnet Parameters	Not defined Registry Closed
Mobile Ad hoc NETwork (MANET) Parameters
Address Block TLV Types	RFC 5444 Expert Review (Expert: Joe Macker and Stan Ratliff)
Cryptographic Functions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
Hash Functions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
HELLO Message-Type-specific Address Block TLV Types	RFC 6130 Expert Review (Expert: Joe Macker and Stan Ratliff)
HELLO Message-Type-specific Message TLV Types	RFC 6130 Expert Review (Expert: Joe Macker and Stan Ratliff)
ICV Address TLV Type Extensions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
ICV Message TLV Type Extensions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
ICV Packet TLV Type Extensions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
INTERVAL_TIME Address Block TLV Type Extensions	RFC 5497 Expert Review (Expert: Joe Macker and Stan Ratliff)
INTERVAL_TIME Message Type Extensions	RFC 5497 Expert Review (Expert: Joe Macker and Stan Ratliff)
LINK_STATUS Address Block TLV Type Extensions	RFC 6130 Expert Review (Expert: Joe Macker and Stan Ratliff)
LOCAL_IF Address Block TLV Type Extensions	RFC 6130 Expert Review (Expert: Joe Macker and Stan Ratliff)
Message TLV Types	RFC 5444 Expert Review (Expert: Joe Macker and Stan Ratliff)
Message Types	RFC 5444 Expert Review (Expert: Joe Macker and Stan Ratliff)
OTHER_NEIGHB Address Block TLV Type Extensions	RFC 6130 Expert Review (Expert: Joe Macker and Stan Ratliff)
Packet TLV Types	RFC 5444 Expert Review (Expert: Joe Macker and Stan Ratliff)
SMF Relay Algorithm IDs	RFC 6621 0-127: Expert Review; 128-255: Reserved for Experimental Use
SMF_NBR_TYPE Address Block TLV Type Extensions	RFC 6621 0-127: Expert Review; 128-255: Reserved for Experimental Use
SMF_TYPE Message TLV Type Extensions	RFC 6621 0-127: Expert Review; 128-255: Reserved for Experimental Use
TIMESTAMP Address TLV Type Extensions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
TIMESTAMP Message TLV Type Extensions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
TIMESTAMP Packet TLV Type Extensions	RFC 6622 0-251: Expert Review; 252-255: Reserved for Experimental Use
VALIDITY_TIME Address Block TLV Type Extensions	RFC 5497 Expert Review (Expert: Joe Macker and Stan Ratliff)
VALIDITY_TIME Message Type Extensions	RFC 5497 Expert Review (Expert: Joe Macker and Stan Ratliff)
Mobile Internet Protocol (IP) Numbers
Access Technology Types	RFC 5563 Expert Review (Phil Roberts)
Code Values	RFC 5944 Expert review (Phil Roberts)
Code Values for General Notification Messages	RFC 6098 Expert Review
Code Values for Mobile IP Handoff Reply Messages	RFC 4881 IETF Consensus
Dual Stack (DSMIPv4) Extension subtypes	RFC 5454 Expert Review (Expert: Not designated)
Dynamic HA Extension subtypes	RFC 4433 IETF Consensus
Extensions to Mobile IP Registration Messages	RFC 5944, RFC 6098 Specification Required
FA Error Extension subtypes (value 45)	RFC 4636 Expert Review (Expert - Phil Roberts)
Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes	RFC 4881 IETF Consensus
IPv6 Prefix Reply Extension Codes	RFC 5454 Expert Review (Expert: Not designated)
Message String Extension	RFC 4917 Expert Review
Mobile Network Acknowledgement Extension	RFC 5177 Standards Action or IESG Approval
NAI Carrying Extension Sub-types (Value 136)	RFC 3846 Expert review and Specification required (Expert: Not designated)
PMIPv4 Device ID Types	RFC 5563 Expert Review (Phil Roberts)
PMIPv4 Non-skippable Extension	RFC 5563 Expert Review (Phil Roberts)
PMIPv4 Per-Node Authentication Method Types	RFC 5563 Expert Review (Phil Roberts)
PMIPv4 Skippable Extension	RFC 5563 Expert Review (Phil Roberts)
PMIPv4 Subscriber ID Types	RFC 5563 Expert Review (Phil Roberts)
Trusted Networks Configured (TNC) Extension subtypes	RFC 5265 Expert Review with Specification Required
User Datagram Protocol (UDP) Tunnel Reply Extension: Subtype	RFC 3519 Expert review. Also specification required. (section 8) (Expert-Phil Roberts)
User Datagram Protocol (UDP) Tunnel Request Extension: Subtype	RFC 3519 Expert review. Also specification required. (section 8) (Expert-Phil Roberts)
Mobile IPv6
Access Network Information (ANI) Sub-Option Type Values	RFC 6757 Expert Review
Access Technology Type Option type values	RFC 5213 Expert Review (Expert - Sri Gundavelli)
Binding Acknowledgment Flags	RFC 5213 Standards Action or IESG Approval
Binding Revocation Acknowledgement Status Codes	RFC 5846 Standards Action or IESG Approval
Binding Revocation Type	RFC 5846 Standards Action or IESG Approval
Binding Update Flags	RFC 5213 Standards Action or IESG Approval
Dual Stack MIPv6 (DSMIPv6) IPv4 Home Address Option Status Codes	RFC 5555 IETF Review
Enumerating Algorithms	RFC 4285 IETF Consensus
Handoff Indicator Option type values	RFC 5213 Expert Review (Expert - Sri Gundavelli)
Handover Acknowledge Flags	Internet Draft draft-ietf-mipshop-pfmipv6-14 Standards Action or IESG Approval
Handover Acknowledge Status Codes	Internet Draft draft-ietf-mipshop-pfmipv6-14 Standards Action or IESG Approval
Handover Initiate Flags	Internet Draft draft-ietf-mipshop-pfmipv6-14 Standards Action or IESG Approval
Handover Initiate Status Codes	Internet Draft draft-ietf-mipshop-pfmipv6-14 Standards Action or IESG Approval
IPv4 DHCP Support Mode Flags	RFC 5844 Expert Review (Expert: Sri Gundavelli)
IPv4 Home Address Reply Status Codes	RFC 5844 Expert Review (Expert: Sri Gundavelli)
Mobile Node Group Identifier Type Registry	Internet Draft draft-ietf-netext-bulk-re-registration-12 Expert Review
Mobile Node Identifier Option Subtypes	RFC 4283 Standards Action
Mobility Header Types	RFC 6275 Standards Action or IESG Approval
Mobility Options	RFC 6275 Standards Action or IESG Approval
Operator Identifier Type Registry	RFC 6757 Expert Review
Pseudo Home Address Acknowledgement Status Codes	RFC 5726 RFC Required
Revocation Trigger Values	RFC 5846 Standards Action or IESG Approval
Status Codes	RFC 6275, RFC 5213 Standards Action or IESG Approval
Status Codes (DNS Update Mobility Option)	RFC 5026 Standards Action or IESG Approval
Subtype field of the MN-HA and MN-AAA authentication mobility options	RFC 4285 IETF Consensus
Multi-threaded Routing Toolkit (MRT)
MRT Subtype Codes	Internet Draft draft-ietf-grow-mrt-17 New Subtype Code definitions must reference an existing Type Code to which the Subtype belongs. Subtype assignments follow the assignment rules for the Type Codes to which they belong.
MRT Type Codes	Internet Draft draft-ietf-grow-mrt-17 65-511: IETF Review. 512-2047: Specification Required. 2048-64511: First Come First Served.
Multicast Acquisition
Multicast Acquisition Method Registry	RFC 6332 Specification Required
Multicast Acquisition Report Block TLV Space Registry	RFC 6332 Specification Required
Multicast Acquisition Status Code Space Registry	RFC 6332 Specification Required
Multicast Address (IPv4)
Address Assignments/Allocations	RFC 5771 Expert review, IESG approval, or standards action process (Expert-Stig Venaas) http://www.iana.org/cgi-bin/multicast.pl
Multicast Address Dynamic Client Allocation Protocol (MADCAP) Parameters
MADCAP Error Codes	RFC 2730 IETF consensus (section 5)
MADCAP Feature Codes	RFC 2730 IETF consensus (section 5)
MADCAP Lease Identifier Types	RFC 2730 IETF consensus
MADCAP Message Types	RFC 2730 IETF consensus
MADCAP Options	RFC 2730 IETF consensus (section 5)
Multicast Address-Set Claim (MASC) Protocol Parameters
Message Types	RFC 2909 IETF consensus (section 15)
NOTIFICATION Message Error Codes and Subcodes	RFC 2909 IETF consensus (section 15)
OPEN Message Optional Parameter Types	RFC 2909 IETF consensus (section 15)
UPDATE Message Attribute Types	RFC 2909 IETF consensus (section 15)
UPDATE Message Optional Parameter Types	RFC 2909 IETF consensus (section 15)
Multicast Ping Protocol Parameters
Multicast Ping Protocol Message Types	RFC 6450 Specification Required
Multicast Ping Protocol Option Types	RFC 6450 Specification Required
Multicast Source Discovery Protocol (MSDP)
TLV Values	RFC 3618 8-200: IESG Approval or Standards Action Process (section 19.1) 201-255: Experimental use (section 19.2)
Multimedia Internet KEYing (MIKEY)
ECC Curve	RFC 6267 Specification Required
ID Scheme	RFC 6509 Specification Required
Key ID Types	RFC 4563 Specification Required
Payload Name Spaces	RFC 3830 IETF Consensus
SAKKE params	RFC 6509 Specification Required
SK sub-payload	RFC 6267 Specification Required
Multiprotocol Label Switching Architecture (MPLS)
Downstream Mapping Address Type Registry	Internet Draft draft-ietf-mpls-tp-on-demand-cv-07 Standards Action
Global Flags	RFC 6425 Standards Action
Information Field and Protocol Identifier in the Q.2941 Generic Identifier	RFC 3033 IETF Review
Label Switched Paths (LSPs) Ping Parameters - Message Types	RFC 4379 0-191 - Standards Action 192-251 - Specification Required (Experimental RFC needed) 252-255 - Vendor Private Use and MUST NOT be allocated
Label Switched Paths (LSPs) Ping Parameters - Reply Modes	RFC 4379 0-191 - Standards Action 192-251 - Specification Required (Experimental RFC needed) 252-255 - Vendor Private Use and MUST NOT be allocated
Label Switched Paths (LSPs) Ping Parameters - Return Codes	RFC 4379 0-191 - Standards Action 192-251 - Specification Required (Experimental RFC needed) 252-255 - Vendor Private Use and MUST NOT be allocated
Label Switched Paths (LSPs) Ping Parameters - TLVs	RFC 4379 0-16383 and 32768-49161 - Standards Action 16384-31743 and 49162-64511 - Specification Required (Experimental RFC needed) 31744-32767 and 64512-65535 - Vendor Private Use, and MUST NOT be allocated
Loss/Delay Measurement Control Code: Query Codes	RFC 6374 IETF Review
Loss/Delay Measurement Control Code: Response Codes	RFC 6374 IETF Review
Measurement Timestamp Type	RFC 6374 IETF Review
MPLS Fault OAM Flag Registry	Internet Draft draft-ietf-mpls-tp-fault-07 Standards Action
MPLS Fault OAM Message Type Registry	Internet Draft draft-ietf-mpls-tp-fault-07 Standards Action
MPLS Fault OAM TLV Registry	Internet Draft draft-ietf-mpls-tp-fault-07 0-191: Standards Action. 192-251: Specification Required.
MPLS Label Values	RFC 3032 IETF consensus
MPLS Loss/Delay Measurement TLV Object	RFC 6374 IETF Review
MPLS PSC Request Registry	Internet Draft draft-ietf-mpls-tp-linear-protection-09 Standards Action
MPLS PSC TLV Registry	Internet Draft draft-ietf-mpls-tp-linear-protection-09 IETF Review
Q.2957 User-to-user Signaling for the Internet Protocol	RFC 3033 IETF Review
Multipurpose Internet Mail Extensions (MIME) and Media Types
Access-Types	RFC 4289 RFC publication required. See section 2 of RFC4289
Event code registry for audio/telephone-event	RFC 4733 Specification Required and Expert Review (Expert - Tom Taylor)
Media Type Sub-Parameters	RFC 3640 See registry.
Media Types	RFC 6838, RFC 4855 Expert Review (Experts: Ned Freed, primary; Mark Baker, secondary) for Vendor and Personal Trees. Per Section 3.1 of RFC 6838, Standards Tree requests made through IETF documents will be reviewed and approved by the IESG, while requests made by other recognized standards organizations via the Specification Required policy. IANA will verify that this organization is recognized as a standards organization by the IESG.
MIME / X.400 Mapping Tables	RFC 1494 (?)
Provisional Standard Media Type Registry	RFC 6838 FCFS (Organization subject to IESG Approval)
Standards-related organizations that have registered Media Types in the Standards Tree	RFC 6838 IESG Approval
Structured Syntax Suffix Registry	RFC 6838 Expert Review (Expert: Ned Freed)
Sub-parameter registry for application/mbox	RFC 4155 Specification Required
Sub-Parameter registry for audio/rtp-midi	RFC 6295 IETF Standards-Track Document or Specification Required (see individual sub-registries)
Sub-Parameter registry for mode=rtp-midi of audio/mpeg4-generic	RFC 6295 IETF Standards-Track Document or Specification Required (see individual sub-registries)
Sub-parameter registry for video/raw	RFC 4175 Specification Required (Values for the sampling and colorimetry parameters)
text/directory Parameters	RFC 2425 Two-week comment period, expert review (Expert: Kurt Zeilenga)
text/directory Profiles	RFC 2425 Two-week comment period, expert review (Expert: Kurt Zeilenga)
text/directory Types	RFC 2425 Two-week comment period, expert review (Expert: Kurt Zeilenga)
Named Information
Named Information Hash Algorithm Registry	RFC 6920 Expert Review (Expert: James Manger)
Named Information URI Parameter Definitions	RFC 6920 Expert Review (Expert: James Manger)
Namespace for IP Over IEEE 1394
CSR Protocol Identifiers	RFC 2734 IANA allocation (section 10)
Multicast Channel Allocation Protocol (MCAP) Parameters	RFC 2734, RFC 3146 Standards Action
Network Configuration Protocol (NETCONF)
Capability URNs	RFC 6241 IETF Standards Action
Network File System version 4 (NFSv4)
NFSv4 ${ietf.org:CPU_ARCH} Value Registry	RFC 5661 First Come First Served
NFSv4 ${ietf.org:OS_TYPE} Value Registry	RFC 5661 First Come First Served
NFSv4 Device ID Notifications Registry	RFC 5661 Standards Action with Expert Review (Expert: Spencer Shepler)
NFSv4 Named Attribute Definitions Registry	RFC 5661 Specification Required (Expert: Spencer Shepler)
NFSv4 Path Variables Registry	RFC 5661 ietf.org domain: Standards Action with Expert Review. (Expert: Spencer Shepler) non-ietf.org. domain: First Come First Served.
NFSv4 Recallable Object Types Registry	RFC 5661 Standards Action with Expert Review (Expert: Spencer Shepler)
pNFS Layout Types Registry	RFC 5661 Standards Action with Expert Review (Expert: Spencer Shepler)
Network Layer Protocol Identifiers (NLPIDs)
NLPIDs of Interest	RFC 6328 IETF Review
Network News Transfer Protocol (NNTP)
Network News Transfer Protocol (NNTP) Parameters	RFC 3977 Labels beginning with X are reserved for private use All others: Standards Track RFC or an IESG-approved experimental protocol
Network Time Protocol (NTP) Parameters
NTP Extension Field Types	RFC 5905 IETF Review
NTP Kiss-o'-Death (KoD) Codes	RFC 5905 First Come, First Served
NTP Reference Identifier Codes	RFC 5905 First Come, First Served
Next Hop Resolution Protocol (NHRP) Types
Extension Types	RFC 2332 Expert or area director review with documentation (section 9) (Expert-Jim Luciani)
Packet Types	RFC 2332 Expert or area director review with documentation (section 9) (Expert-Jim Luciani)
Novell Service Advisor Protocol (SAP) Numbers
Novell Object Types	Not IETF IANA does not assign
NSIS Signaling Layer Protocol (NSLP) Parameters
AUTH_ENT_ID (X-Type 1) SubType values	RFC 5981 Specification Required
DEST_ADDR (X-Type 4) SubType values	RFC 5981 Specification Required
END_TIME (X-Type 6) SubType values	RFC 5981 Specification Required
Informational Error Codes	RFC 5974 0-63: IETF Review. 64-127: Specification Required.
NATFW NSLP Header Flags	RFC 5973 IETF Review
NATFW NSLP Message Types	RFC 5973 IETF Review
NSLP Error Classes	RFC 5974, RFC 5973 IETF Review
NSLP Message Objects	RFC 5974 1-1023: IETF Review. 1024-1999: Specification Required.
Permanent Failure Codes	RFC 5974 0-63: IETF Review. 64-127: Specification Required.
Protocol Error Codes	RFC 5974 0-63: IETF Review. 64-127: Specification Required.
QoS Model Error Codes	RFC 5975 Specification Required
QoS NSLP Binding Codes	RFC 5974 IETF Review
QoS NSLP Error Source Identifiers	RFC 5974 Specification Required
QoS NSLP Message Types	RFC 5974 IETF Review
SESSION_AUTH X-Types	RFC 5981 Specification Required
SOURCE_ADDR (X-Type 3) SubType values	RFC 5981 Specification Required
START_TIME (X-Type 5) SubType values	RFC 5981 Specification Required
START_TIME (X-Type 5) SubType values	Internet Draft draft-ietf-nsis-nslp-auth-07 Specification Required
Success Error Codes	RFC 5974 0-63: IETF Review. 64-127: Specification Required.
Transient Failure Codes	RFC 5974 0-63: IETF Review. 64-127: Specification Required.
OAuth
OAuth Access Token Types	Internet Draft draft-ietf-oauth-urn-sub-ns-06 Specification Required (Expert: Hannes Tschofenig)
OAuth Authorization Endpoint Response Types	Internet Draft draft-ietf-oauth-urn-sub-ns-06 Specification Required (Expert: Hannes Tschofenig)
OAuth Extensions Errors	Internet Draft draft-ietf-oauth-urn-sub-ns-06 Specification Required (Expert: Hannes Tschofenig)
OAuth Parameters	Internet Draft draft-ietf-oauth-urn-sub-ns-06 Specification Required (Expert: Hannes Tschofenig)
OAuth URI	Internet Draft draft-ietf-oauth-urn-sub-ns-06 Specification Required (Expert: Hannes Tschofenig)
One Time Password (OTP) Parameters
Algorithm Identifier	RFC 2289 IESG Approval
Extension Set ID	RFC 2243 IESG Approval
Open Shortest Path First (OSPF)
Authentication Codes	RFC 2328 0-255 IETF Consensus; 256-65535 Reserved and should not be assigned
Bandwidth Constraints Model Identifiers	RFC 4124 0-239 Specification Required 240-255 Private Use
Database Description (DD) Packet Flags	RFC 5838 Standards Action
Link Local Signalling TLV Identifiers (LLS Types)	RFC 5613 IETF Review
LLS Type 1 Extended Options and Flags	RFC 5613 Expert Review (Expert: Not designated)
Opaque Link-State Advertisements (LSA) Option Types	RFC 5250 0-127: IETF Consensus. 128-255: Reserved for Private Use.
OSPF Multi-Topology Routing	RFC 4915 3-31: IETF consensus
Signature Algorithms	RFC 2154 IETF Review
Traffic Engineering TLVs	RFC 3630 3-32767: Standards Action (section 6) 332768-32777: Experimental use (section 6) 32778-65535: Standards Track RFC (section 6)
Open Shortest Path First v2 (OSPFv2)
OSPF Authentication Codes	RFC 2328, RFC 6549 IETF Consensus
OSPF Packet Type	0 Reserved, 1-127: Standards Action, 128-255 : Reserved
OSPF Router Information (RI) TLVs	RFC 4970 0 Reserved, 1-32767: Standards Action, 32768-32777: Experimentation, 32778-65535: Reserved
OSPF Router Informational Capability Bits	RFC 4970 Standards Action
OSPFv2 Grace LSA Top Level TLV	RFC 4940 0 Reserved, 1-255: Standards Action, 256-65519: Reserved, 65520-65527: Experimentation, 65528-65535: Vendor Private Use
OSPFv2 Link State (LS) Type	0 Reserved, 1-127: Standards Action, 128-255: Reserved
OSPFv2 Options	RFC 4940 Standards Action
OSPFv2 Router LSA Link Type	RFC 4940 0 Reserved, 5-127: Standards Action, 128-255: Reserved
OSPFv2 Router Properties	RFC 4940 Standards Action
Open Shortest Path First v3 (OSPFv3)
Open Shortest Path First v3 (OSPFv3) Authentication Trailer Options	RFC 6506 Standards Action
OSPFv3 Instance ID Address Family Values	RFC 5838 Standards Action
OSPFv3 LSA Function Codes	RFC 4970 0 Reserved, 1-255: Standards Action, 256-8175: Reserved, 8176-8183: Experimentation, 8184-8191: Vendor Private Use
OSPFv3 Options	RFC 4940 Standards Action
OSPFv3 Prefix Options	RFC 4940 Standards Action
OSPFv3 Router LSA Link Type	RFC 4940 0 Reserved, 1-127: Standards Action, 128-255: Reserved
OSPFv3 Router Properties Registry	RFC 5340 Standards Action
Open Systems Interconnection (OSI) Network Service Access Point Addresses (NSAPA) Internet Code Point
OSI NSAPA Internet Code Point	RFC 4548 2-9999 IETF Consensus
Operating System Names
Operating System Names	RFC 952 First Come First Served
Specific Parameters	RFC 3659 First Come First Served
OPES Callout Protocol Core
OCP Features	RFC 4037 Designated expert review for standards-track registration
Optimized Link State Routing Protocol (OLSR)
Optimized Link State Routing Protocol (OLSR)	RFC 3626 5-127: Standards Action (section 22) 128-255: Reserved for Private/Local use. (section 22)
PA-TNC Parameters
PA-TNC Attribute Types	RFC 5792 Expert Review with Specification Required
PA-TNC Error Codes	RFC 5792 Expert Review with Specification Required
PA-TNC Remediation Parameters Types	RFC 5792 Expert Review with Specification Required
Packet Sampling (PSAMP) Parameters
PSAMP selectorAlgorithm Identifiers	RFC 5476 Expert Review (Expert: Juergen Quittek)
Path Computation Element Protocol (PCEP) Numbers
CLOSE Object Flag Field	RFC 5440 IETF Review
CLOSE Object Reason Field	RFC 5440 IETF Review
ERO Subobjects	RFC 5520 IETF Review
IRO Subobjects	RFC 5521 IETF Review
LOAD-BALANCING Object Flag Field	RFC 5440 IETF Review
LSPA Object Flag Field	RFC 5440 IETF Review
METRIC Object Flag Field	RFC 5440 IETF Review
METRIC Object T Field	RFC 5440 IETF Review
NO-PATH Object Flag Field	RFC 5440 IETF Review
NO-PATH Object NI Field	RFC 5440 IETF Review
NO-PATH-VECTOR TLV Flag Field	RFC 5440 IETF Review
Notification Object	RFC 5440 IETF Review
Notification Object Flag Field	RFC 5440 IETF Review
Objective Function	RFC 5541 1-1023: IETF Review. 1024-32767: First Come First Served. 32768-65535: Reserved for Private Use.
Open Object Flag Field	RFC 5440 IETF Review
PATH-KEY Subobjects	RFC 5520 IETF Review
PCEP Message Common Header Flag Field	RFC 5440 IETF Review
PCEP Messages	RFC 5440 IETF Review
PCEP Objects	RFC 5440 IETF Review
PCEP TLV Type Indicators	RFC 5440 IETF Review
PCEP-ERROR Object Error Types and Values	RFC 5440 IETF Review
PCEP-ERROR Object Flag Field	RFC 5440 IETF Review
RP Object Flag Field	RFC 5440 IETF Review
SVEC Object Flag Field	RFC 5440 IETF Review
XRO Flag Field	RFC 5521 IETF Review
XRO Subobjects	RFC 5521 IETF Review
PB-TNC Parameters
PA Subtypes	Internet Draft draft-ietf-nea-pb-tnc-06 Expert Review with Specification Required
PB-TNC Error Codes	RFC 5793 Expert Review with Specification Required
PB-TNC Message Types	RFC 5793 Expert Review with Specification Required
PB-TNC Remediation Parameters Types	RFC 5793 Expert Review with Specification Required
Per Hop Behavior Identification Codes
ID Codes	RFC 3140 Expert or area director review (section 4) (Experts - Primary: Brian Carpenter; Secondary: David Black)
Point to Point Protocol (PPP) Numbers
Bridging MAC Types	RFC 3518, RFC 3818 IETF Review
Internet Protocol (IP) Header Compression Configuration Option Suboption Types	RFC 3544 Standards Action
Internetwork Packet Exchange (IPX) Compression Protocol Values	RFC 1552 Expert review (Expert - James Carlson)
Internetwork Packet Exchange (IPX) Routing Protocol Options	RFC 1552 Expert review (Expert - James Carlson)
Internetwork Packet Exchange Control Protocol (IPXCP) Configuration Options	RFC 1552 Expert review (Expert - James Carlson)
IP Header Compression Configuration Option Suboption Types	RFC 3544 Standards Action Process (section 7)
IP-Compression-Protocol Types	RFC 1322 IETF Consensus
IPv6-Compression-Protocol	RFC 5172 IETF Consensus
Link Control Protocol (LCP) Callback Operation Fields	RFC 1570, RFC 3818 IETF Review
Multilink Endpoint Discriminator Class	RFC 1990, RFC 3818 IETF Review
NetBIOS Frames Control Protocol (NBFCP) Configuration Options	RFC 2097 Expert review (Expert - James Carlson)
PPP Apple Talk Control Protocol (ATCP) Configuration Option Types	RFC 1378 Expert review (Expert - James Carlson)
PPP Authentication Algorithms	RFC 1994 Expert review (Expert - James Carlson)
PPP Banyan Vines Control Protocol (BVCP) Configuration Option Types	RFC 1763 Expert review (Expert - James Carlson)
PPP Bridging Configuration Option Types	RFC 3518, RFC 3818 IETF Review
PPP Bridging Spanning Tree	RFC 3518, RFC 3818 IETF Review
PPP Compression Control Protocol (CCP) Configuration Option Types	RFC 1962, RFC 3818 IETF Review
PPP Data Link Layer (DLL) Protocol Numbers	RFC 1661, RFC 3818 IETF Review
PPP Encryption Control Protocol (ECP) Configuration Option Types	RFC 1968 Expert review (Expert - James Carlson)
PPP Extensible Authentication Protocol (EAP) Request/Response Types	RFC 3748 Replaced by "Method Types" registry at http://www.iana.org/assignments/eap-numbers
PPP Internet Protocol Control Protocol (IPCP) Configuration Option Types	RFC 1332, RFC 3818 IETF Review
PPP IPv6CP Configuration Options	RFC 5072, RFC 3818 IETF Review
PPP Link Control Protocol (LCP) Configuration Option Types	RFC 1661, RFC 3818 IETF Review
PPP Link Control Protocol (LCP) FCS-Alternatives	RFC 1570, RFC 3818 IETF Review
PPP Link Control Protocol (LCP), Compression Control Protocol (CCP), and Internet Protocol Control (IPCP) Codes	RFC 1661, RFC 3818 IETF Review
PPP OSI Network Layer Control Protocol (OSINLCP) Configuration Option Types	RFC 1377 Expert review (Expert - James Carlson)
PPP TNCP Configuration Option Types	Internet Draft draft-ietf-pppext-trill-protocol-08 IETF Review
PPP Vendor Specific Organizationally Unique Identifiers (OUI) Options	RFC 5342 See RFC
Robust Header Compression (ROHC) Configuration Option Suboption Identifier Values	RFC 3241, RFC 4901 Note: Please see http://iana.org/assignments/rohc-sub-ids/rohc-sub-ids.xhtml
Serial Data Control Protocol (SDCP) Configuration Options	RFC 1963 Expert review (Expert - James Carlson)
Point-to-Point Over Ethernet (PPPoE)
PPPoE Active Discovery Code fields	RFC 4937 First Come First Served
PPPoE TAG Values	RFC 4937 First Come First Served
Port Control Protocol (PCP) Parameters
PCP Opcodes	RFC 6887 0-31, 127: Standards Action. 32-63: Specification Required.
PCP Options	RFC 6887 0-63, 127-191, 255: Standards Action. 64-95, 192-223: Specification Required.
PCP Result Codes	RFC 6887 0-127, 255: Standards Action. 128-191: Specification Required.
Port Numbers
Service Name and Transport Protocol Port Number Registry	RFC 6335 Service names: First-come, First-served; User Ports: IETF Review, IESG Approval or Expert Review (Experts: Joe Touch; Eliot Lear, Allison Mankin, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov)
System	RFC 2780 Specification Required
User	RFC 2780 Expert review (Port Expert Team)
Portable Symmetric Key Container (PSKC)
Algorithm URI Registry and Related PSKC Arofiles	RFC 6030 Specification Required
Key Usage Registry	RFC 6030 Expert Review
PSKC Version Registry	RFC 6030 Standards Action
Post Office Protocol version 3 (POP3) Extension Mechanism
POP3 Capabilities	RFC 2449 Standards track or IESG approved experimental RFC (section 9)
POP3 Response Codes	RFC 2449 RFC specification required (section 9)
Presence SRV Protocol
Label Registry	RFC 3861 Specification Required
Pretty Good Privacy (PGP)
Compression Algorithms	RFC 4880 IETF Consensus
Hash Algorithms	RFC 4880 IETF Consensus
Image Format Subpacket Types	RFC 4880 IETF Consensus
Implementation Features	RFC 4880 IETF Consensus
Key Flags Extensions	RFC 4880 IETF Consensus
Key Server Preference Extensions	RFC 4880 IETF Consensus
New Packet Versions	RFC 4880 IETF Consensus
PGP Packet Types/Tags	RFC 4880 IETF Consensus
PGP String-to-Key (S2K)	RFC 4880 IETF Consensus
PGP User Attribute Types	RFC 4880 IETF Consensus
Public Key Algorithms	RFC 4880 IETF Consensus
Reasons for Revocation Extensions	RFC 4880 IETF Consensus
Signature Notation Data Subpacket Types	RFC 4880 IESG Expert
Signature Subpacket Types	RFC 4880 IETF Consensus
Symetric Key Algorithms	RFC 4880 IETF Consensus
Printer Language Numbers
Printer Language Numbers - OBSOLETE	RFC 3805 Expert Review (Experts: Ira McDonald, Michael Sweet)
Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET)
Bundle Offer and Response B Flags	RFC 6693 Specification Required
Bundle Offer and Response TLV Flags	RFC 6693 Specification Required
DTN Routing Protocol Number	RFC 6693 Specification Required
Error TLV Flags	RFC 6693 Specification Required
Hello TLV Flags 0, 1, 2	RFC 6693 Specification Required
Hello TLV Flags 3-7	RFC 6693 Specification Required
PRoPHET Codes for Failure	RFC 6693 Specification Required
PRoPHET Codes for Success	RFC 6693 Specification Required
PRoPHET Header Flags	RFC 6693 Specification Required
PRoPHET Protocol Version	RFC 6693 Specification Required
PRoPHET Result Field	RFC 6693 Specification Required
PRoPHET TLV Type	RFC 6693 Specification Required
RIB Dictionary TLV Flags	RFC 6693 Specification Required
RIB Flags	RFC 6693 Specification Required
RIB TLV Flags	RFC 6693 Specification Required
Pronet 80 Type Numbers
Pronet 80 Type Numbers	Not IETF Not assigned by IANA
Protocol for Carrying Authentication for Network Access (PANA) Parameters
AVP Codes	RFC 5191 Expert Review with Specification Required, or Standards Action (Expert: Alper Yegin)
AVP Flags	RFC 5191, RFC 5872 Standards Action or IESG Approval
Encryption-Algorithm (AVP Code 13) AVP Values	RFC 6786 IETF Review or IESG Approval
Message Flags	RFC 5191, RFC 5872 Standards Action or IESG Approval
Message Types	RFC 5191, RFC 5872 5-65519 IETF Review or IESG Approval; 65520-65535 IANA does not assign, please see RFC3692.
Result-Code (AVP Code 7) AVP Values	RFC 5191, RFC 5872 IETF Review or IESG Approval
Termination-Cause (AVP Code 9) AVP Values	RFC 5191, RFC 5872 IETF Review or IESG Approval
Protocol Independent Multicast (PIM)
Encoded-Source Address Encoding Type Field	RFC 4601, RFC 5384 IETF Review
PIM Address Family Numbers	RFC 3973 0-127 Same meaning as Address Family Numbers 128-250 IESG Approval 251-255 Private Use
PIM Hello Options	RFC 4601, RFC 3973 FCFS (expire in 1 year). Specification Required for Permanent assignments.
PIM Join Attribute Types	RFC 5384 IETF Review
PIM Message Types	RFC 6166 IETF Review
PORT Message Types	RFC 6559 RFC Required
PORT Option Types	RFC 6559 RFC Required
Protocol Names
Protocol Names	RFC 952 (?) (Also Service Names)
Proxy Certificate Policy
Languages	RFC 3820 IETF Standards Action
Pseudowire Name Spaces (PWE3)
Associated Channel Header TLV Registry	RFC 5586 IETF Review
Attachment Group Identifier (AGI) Type Registry	RFC 4446 2 through 64 - Expert Review (Experts - Stewart Bryant, Danny McPherson); 65 through 127, and 255 - IETF Consensus 128 through 254 - First Come First Serve (reserved for vendor proprietary extensions)
Attachment Individual Identifier Type Registry	RFC 4446 2 through 64 - Expert Review (Experts - Stewart Bryant, Danny McPherson); 65 through 127, and 255 - IETF Consensus 128 through 254 - First Come First Serve (reserved for vendor proprietary extensions)
CC/CV MEP-ID TLV Registry	Internet Draft draft-ietf-mpls-tp-cc-cv-rdi-06 Standards Action
Header Compression Over MPLS PW Control Word Packet Type	RFC 4901 Expert Review
L2VPN PE Stack Capabilities	Internet Draft draft-ietf-l2vpn-arp-mediation-19 IETF Review
MPLS Pseudowire Types Registry	RFC 4446 31 through 1024 - Expert Review (Experts - Stewart Bryant, Danny McPherson); 1025 through 4096, and 32767 - IETF Consensus 4097 through 32766 - First Come First Serve (reserved for vendor proprietary extensions)
MPLS VCCV Connectivity Verification (CV) Types	RFC 5085 IETF Consensus
MPLS VCCV Control Channel (CC) Types	RFC 5085 IETF Consensus
Pseudowire Associated Channel Types Registry	RFC 4385 0-32759: IETF Review. 32760-32767: Reserved for Experimental Use. 32768-65535: IETF Review.
Pseudowire Interface Parameters Sub-TLV Type Registry	RFC 4446 13 through 64 - Expert Review (Experts - Stewart Bryant, Danny McPherson); 65 through 127, and 255 - IETF Consensus 128 through 254 - First Come First Serve (reserved for vendor proprietary extensions)
Pseudowire Status Codes Registry	RFC 4446 5 through 31 - Expert Review (Experts - Stewart Bryant, Danny McPherson)
Pseudowire Switching Point PE sub-TLV Type	RFC 6073 0: IETF Review. 1-64: Expert Review (Primary: Stewart Bryant; secondary: Matthew Bocci). 65-127: IETF Review. 128-254: First Come First Served (reserved for vendor proprietary extensions). 255: IETF Review.
PW Generic Protocol Flags	Internet Draft draft-ietf-pwe3-static-pw-status-10 IETF Review
PT-EAP: Posture Transport (PT) Protocol For EAP Tunnel Methods
PT-EAP Versions	Internet Draft draft-ietf-nea-pt-eap-09 Standards Action
Public Data Network Numbers
Public Data Network Numbers	RFC 1356 Registrations no longer accepted. For current status please see http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xhtml
Public Key Infrastructure using X.509 (PKIX) Parameters
Certification Authority Restriction Flags	RFC 6844 RFC Required
Certification Authority Restriction Properties	RFC 6844 Specification Required
PKIX SRV Protocol Labels	RFC 4386 Specification Required
Publisher Identification Codes
Publisher ID Codes	RFC 2780 IANA does not assign
QoS NSIS Signal Layering Protocol (NSLP) QSPEC Parameters
Excess Treatment Parameter	RFC 5975 Specification Required
Extent of Restoration Field	RFC 5976 Specification Required
Object Types	RFC 5975 Specification Required
Parameter ID	RFC 5975 Specification Required
QSPEC Procedure	RFC 5975 Specification Required
QSPEC Type	RFC 5975 Specification Required
QSPEC Version	RFC 5975 Specification Required
Restoration Priority Field	RFC 5976 Specification Required
Time to Restore Field	RFC 5976 Specification Required
Y.1541 QoS Class Parameter	RFC 5975 Specification Required
Y.2171 Admission Priority Parameter	RFC 5975 Specification Required
Radius Types
Radius Attribute Types	RFC 3575, RFC 6929 1-191: IETF Consensus. 241-246 (extended space, Unassigned): IETF Review. 241-246 (extended space, Reserved): Standards Action.
Radius Attribute Values	RFC 3575 Registration procedure varies by attribute
Radius Packet Type Codes	RFC 3575 IESG Approval
Vendor IDs	RFC 2865 Obtain a Private Enterprise Number. See http://pen.iana.org/pen/PenApplication.page
Real Time Streaming Protocol (RTSP)/1.0 Parameters
RTSP/1.0 Headers	RFC 2326 Standards Document, preferable an IETF RFC
RTSP/1.0 Methods	RFC 2326 IETF standard track document
RTSP/1.0 Option Tags	RFC 2326 Specification Required
RTSP/1.0 Status Codes	RFC 2326 IETF standards track document
Real-time Inter-network Defense (RID)
RID Enumeration List	RFC 6545 Expert Review
XML Schemas Exchanged via RID	RFC 6545 Expert Review and Specification Required
Real-Time Transport Protocol (RTP) Parameters
FMT Values for RTPFB and PSFB Payload Types	RFC 4585 2-30 Specification Required
RAMS Response Code Space Registry	RFC 6285 Specification Required
RAMS TLV Space Registry	RFC 6285 Specification Required
Real-Time Transport Protocol (RTP) Payload Format media types	RFC 4855 Standards Action Process or expert approval (Expert-Steve Casner)
Real-Time Transport Protocol (RTP) Payload types (PT) for standard audio and video encodings	RFC 3551 Registry closed (section C)
Real-Time Transport Protocol (RTP) Profile Names	RFC 3550 Standards Action Process or expert approval (section D) (Expert-Steve Casner)
RTP Compact Header Extensions	RFC 5285 Expert Review (Experts: Magnus Westerlund, Stephen Casner)
RTP RTCP Control Packet Types	RFC 5761, RFC 3550 Specification Required (Experts: Steve Casner, Magnus Westerlund)
RTP SDES Item Types	RFC 3550 (?)
SFMT Values for RAMS Messages	RFC 6285 Specification Required
SMT Values for TOKEN Packet Type Registry	RFC 6284 IETF Review
Realm Specific Internet Protocol (RSIP) Parameters
Address Types	RFC 3103 Specification required (section 12)
Flow Policy	RFC 3103 Specification required (section 12)
RSIP Error Codes	RFC 3103 Specification required (section 12)
RSIP Message Type Codes	RFC 3103 Specification required (section 12)
RSIP Methods	RFC 3103 Specification required (section 12)
RSIP Parameters	RFC 3103 Specification required (section 12)
Tunnel Types	RFC 3103 Specification required (section 12)
Vendor ID	RFC 3103 Specification required (section 12)
Realtime Traffic Flow Measurement (RTFM)
Pattern Matching Engine (PME) Opcodes	RFC 2722 IETF Review
RTFM Attributes	RFC 2722 0-511: IETF Review. 512-1023: First Come First Served.
Registrar Identification Codes
Registrar ID Codes	Not defined by an RFC ICANN Accredited Registrars
Reliable Multicast Transport (RMT) Parameters
FEC Encoding IDs	RFC 5052 IETF Consensus
FEC Framework (FECFRAME) FEC Encoding IDs	RFC 6363 IETF Review
FEC Instance IDs	RFC 5052 FCFS
Layered Coding Transport (LCT) Header Extension Types	RFC 5651 0-63: IETF Review (variable length). 64-127: Specification Required (variable length). 128-191: IETF Review (fixed length). 192-255: Specification Required (fixed length). Primary expert: Mark Watson; secondary expert: Vincent Roca.
NACK-Oriented Reliable Multicast (NORM) Stream Control Codes	RFC 5740 Specification Required
Negative-ACKnowledgment (NACK) Oriented Reliable Multicast (NORM) Header Extension Types	RFC 5740 Specification Required
NORM_CMD Message Sub-types	RFC 5740 Specification Required
Reliable Server Pooling (RSerPool) Parameters
Aggregate Server Access Protocol (ASAP) Message Types	RFC 5352 Specification Required
Endpoint Handlespace Redundancy Protocol (ENRP) Message Types	RFC 5353 Specification Required
RSerPool Error Causes	RFC 5354 Specification Required
RSerPool Parameter Types	RFC 5354 Specification Required
RSerPool Policy Types	RFC 5356 Specification Required
Update Action Types	RFC 5353 Specification Required
Remote Direct Data Placement (RDDP)
DDP Errors	RFC 6580 Standards Action
MPA Errors	RFC 6580 Standards Action
RDMAP Errors	RFC 6580 Standards Action
RDMAP Message Operation Codes	RFC 6580 Standards Action
SCTP Function Codes for DDP Stream Session Control	RFC 6580 Standards Action
Remote Framebuffer (RFB)
Remote Framebuffer Client-to-Server Message Types	RFC 6143 Expert Review (Expert: Tristan Richardson)
Remote Framebuffer Encoding Types	RFC 6143 Expert Review (Expert: Tristan Richardson)
Remote Framebuffer Security Types	RFC 6143 Expert Review (Expert: Tristan Richardson)
Remote Framebuffer Server-to-Client Message Types	RFC 6143 Expert Review (Expert: Tristan Richardson)
Remote Procedure Call (RPC)
Network Identifier (r_netid)	RFC 3530 Informational RFC (section17.2)
ONC RPC Network Identifiers (netids)	RFC 5665 First Come First Served and Standards Action
ONC RPC Uaddr Format Registry	RFC 5665 First Come First Served or Standards Action
Protocol Family (r_nc_protofmly)	RFC 1833 Standards Action
Protocol Name (r_nc_proto)	RFC 1833 Standards Action
RPC Authentication Flavor Numbers	RFC 5531 First Come First Served. Note: For all RPC authentication flavor and authentication status numbers to be used on the Internet, it is strongly advised that an informational or standards-track RFC be published describing the authentication mechanism behaviour and parameters.
RPC Authentication Status Numbers	RFC 5531 First Come First Served. Note: For all RPC authentication flavor and authentication status numbers to be used on the Internet, it is strongly advised that an informational or standards-track RFC be published describing the authentication mechanism behaviour and parameters.
RPC Program Numbers	RFC 5531 The range 0x00000001 - 0x1fffffff is reserved to be assigned by IANA. New assignments will start from decimal 400000. Up to 100 numbers: First Come First Served. 101-1000 numbers: Specification Required. (Expert: Spencer Shepler) More than 1000 numbers: IESG Approval.
Transport Semantics (r_nc_semantics)	RFC 1833 Standards Action
Reserved Internet Protocol version 6 (IPv6) Interface Identifiers
Reserved Internet Protocol version 6 (IPv6) Interface Identifiers	RFC 5453 Standards Action
REsource LOcation And Discovery (RELOAD)
[RFC-ietf-p2psip-base-26]RELOAD Probe Information Type Registry	Internet Draft draft-ietf-p2psip-base-26 Standards Action
RELOAD Access Control Policies	Internet Draft draft-ietf-p2psip-base-26 Standards Action
RELOAD Application-ID	Internet Draft draft-ietf-p2psip-base-26 1-32767: Standards Action. 32768-61440: Expert Review (Marc Petit-Huguenin - primary; Cullen Jennings - secondary).
RELOAD Data Kind-ID	Internet Draft draft-ietf-p2psip-base-26 0x00000001-0x7fffffff: Standards Action. 0x8000000-0xf0000000: Expert Review (Marc Petit-Huguenin - primary; Cullen Jennings - secondary).
RELOAD Data Model	Internet Draft draft-ietf-p2psip-base-26 Standards Action
RELOAD Error Codes	Internet Draft draft-ietf-p2psip-base-26 Standards Action
RELOAD Extensions Registry	Internet Draft draft-ietf-p2psip-base-26 Specification Required (Marc Petit-Huguenin - primary; Cullen Jennings - secondary)
RELOAD Forwarding Option Registry	Internet Draft draft-ietf-p2psip-base-26 0-127: Standards Action. 128-254: Specification Required (Marc Petit-Huguenin - primary; Cullen Jennings - secondary).
RELOAD Message Codes	Internet Draft draft-ietf-p2psip-base-26 Standards Action
RELOAD Overlay Algorithm Types	Internet Draft draft-ietf-p2psip-base-26 IETF Review
RELOAD Overlay Link Protocol Registry	Internet Draft draft-ietf-p2psip-base-26 Standards Action
RELOAD Overlay Link Registry	Internet Draft draft-ietf-p2psip-base-26 Standards Action
Resource Public Key Infrastructure (RPKI)
RPKI Repository Name Schemes	RFC 6481 IETF Review
RPKI Signed Objects	RFC 6488 Standards Action
rpki-rtr-error	RFC 6810 Expert Review (Keyur Patel (primary); John G. Scudder (secondary))
rpki-rtr-pdu	RFC 6810 RFC Required (Standards Track or Experimental)
Resource ReSerVation Protocol (RSVP) Parameters
Call Attributes Flags	RFC 6001 RFC Required
Call Attributes TLV	RFC 6001 RFC Required
Capability Object values	RFC 5063 Standards Action
Class Names, Class Numbers, and Class Types	RFC 3936 Class-Num = 0bbbbbbb 0-119 Standards Action 120-123 Expert Review 124-127 Vendor Private Use Class-Num = 10bbbbbb 128-183 Standards Action 184-187 Expert Review 188-191 Vendor Private Use Class-Num = 11bbbbbb 192-247 Standards Action 248-251 Expert Review 252-255 Vendor Private Use For Class Numbers that pre-date RFC3936, new Class Types are assigned via Standards Action. (Experts - Primary: Francois Le Faucheur, Secondary: Dimitri Papadimitriou)
Error Codes and Globally-Defined Error Value Sub-Codes	RFC 3936 Error codes: 0-239 Standards Action. 240-251 Expert Review. 252-255 Vendor Private Use. (Experts - Primary: Francois Le Faucheur, Secondary: Dimitri Papadimitriou). Globally defined error values: Standards Action.
Message Types	RFC 3936 0-239 Standards Action 240-255 Expert Review (Experts - Primary: Francois Le Faucheur, Secondary: Dimitri Papadimitriou)
Sub-error code "Diffserv Error" (Value 27)	RFC 3270 First Come First Served
Virtual Destination Ports	RFC 2207 0 Illegal Value 1-10 Reserved (Contact Authors) 11-8191 Assigned by IANA 8192-65535 Dynamic
Resource ReSerVation Protocol - Traffic Engineering (RSVP-TE) Parameters
Attribute Flags	RFC 5420 IETF Consensus
Attributes TLV Space	RFC 5420 IETF Consensus
Session Attribute Object Flags	RFC 4859 IETF Consensus
RObust Header Compression (ROHC)
Profile Identifiers	RFC 5795 0-127: Standards Track RFC 128-254: Other specs that meet this requirement such as an Informational RFC (Expert: Carl Knutsson)
Suboption Identifier Values	RFC 3241 Specification Required. 0-127: IETF standards-track specifications; 128-254: All other specifications
Route Distinguisher Types
Type Values	RFC 4364 High-order bit of 0 - First Come First Serve High-order bit of 1 - IETF Consensus
Routing Information Protocol (RIP) Types
Message Types	RFC 1723 (?)
Routing Protocol for Low Power and Lossy Networks (RPL)
Mode of Operation	RFC 6550 IETF Review
RPL Control Codes	RFC 6550 IETF Review
Routing Protocol for Low Power and Lossy Networks (RPL) Routing Metric/Constraint
Hop-Count Object Flag field	RFC 6551 IETF Review
NSA Object Flag field	RFC 6551 IETF Review
Routing Metric/Constraint Common Header A field	RFC 6551 IETF Review
Routing Metric/Constraint Common Header Flag field	RFC 6551 IETF Review
Routing Metric/Constraint TLVs	RFC 6551 IETF Review
Routing Metric/Constraint Type	RFC 6551 IETF Review
RTP Control Protocol Extended Reports (RTCP XR)
Block Types	RFC 3611 Specification Required (Expert: Joerg Ott)
RTCP XR PDV block - PDV type	RFC 6798 Specification Required
SDP Parameters	RFC 3611 Specification Required (Expert: Joerg Ott)
S-NAPTR Parameters
Application Protocol Tags	RFC 3958 Specification Required in form of a RFC
Application Service Tags	RFC 3958 Specification Required in form of a RFC
Secure Shell (SSH) Protocol Parameters
Authentication Method Names	RFC 4250 IETF Consensus
Channel Connection Failure Reason Codes and Descriptions	RFC 4250 0x00000005 through 0xFDFFFFFF - IETF CONSENSUS
Compression Algorithm Names	RFC 4250 IETF Consensus
Connection Protocol Assigned Names - Channel Request Names	RFC 4250 IETF Consensus
Connection Protocol Assigned Names - Channel Types	RFC 4250 IETF Consensus
Connection Protocol Assigned Names - Global Request Names	RFC 4250 IETF Consensus
Connection Protocol Assigned Names - Subsystem Names	RFC 4250 IETF Consensus
Disconnection Messages Reason Codes and Descriptions	RFC 4250 0x00000010 through 0xFDFFFFFF - IETF CONSENSUS
Encryption Algorithm Names	RFC 4250 IETF Consensus
Extended Channel Data Transfer data_type_code and Data	RFC 4250 IETF Consensus
Key Exchange Method Names	RFC 4250 IETF Consensus
MAC Algorithm Names	RFC 4250 IETF Consensus
Message Numbers	RFC 4250 STANDARDS ACTION
Pseudo-Terminal Encoded Terminal Modes	RFC 4250 IETF Consensus
Public Key Algorithm Names	RFC 4250 IETF Consensus
Publickey Subsystem Attributes	RFC 4819 IETF consensus
Publickey Subsystem Request Names	RFC 4819 IETF consensus
Publickey Subsystem Response Names	RFC 4819 IETF consensus
Publickey Subsystem Status Codes	RFC 4819 Standards Action
Service Names	RFC 4250 IETF Consensus
Signal Names	RFC 4250 IETF Consensus
SSH Public-Key File Header Tags	RFC 4716 IETF Consensus
Security Parameters Index
SPI Values	RFC 1826, RFC 2402, RFC 2406, RFC 4302, RFC 4303 RFC required
Selective P-Multicast Service Interface (S-PMSI) Parameters
S-PMSI Join Message Type Field	RFC 6513 IETF Review
Sender Policy Framework (SPF) Parameters
Modifier Names	RFC 6652 Specification Required
Server Cache Synchronization Protocol (SCSP) Parameters
Protocol ID's	RFC 2334 RFC, product of standards body, or expert review
Service Location Protocol (SLP) Parameters
SLP Remote Service Discovery	RFC 3832 Expert Review (Expert: Not designated)
Service Location Protocol Version 2 (SLPv2) Registrations
Cryptographic BSD Codes	RFC 2608 IETF Consensus
Error Numbers	RFC 2608 IETF Standards Action
Service Location Protocol Extensions	RFC 2608 Expert review (Expert-Erik Guttman)
Service Templates	RFC 2609 Expert review (section 5) (Expert-Erik Guttman)
SLPv2 Function ID's	RFC 2608 12-255: IETF consensus
Service Names
Service Name and Transport Protocol Port Number Registry	RFC 6335 Service names: First-come, First-served; User Ports: IETF Review, IESG Approval, or Expert Review (Experts: Joe Touch; Eliot Lear, Allison Mankin, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov)
Service Names	RFC 952 Not defined
Session Description Protocol (SDP) Parameters
ack and nack Attribute Values	RFC 4585 First Come First Served with a permanent, stable, and publically accessible document
Codec Control Messages	RFC 5104 Specification Required
QoS Mechanism Tokens	RFC 5432 Specification Required
rtcp-fb Attribute Values	RFC 4585 First Come First Served with permanent, stable, and publically accessible document.
SDP Capability Negotiation Configuration Parameters Registry	RFC 5939, Internet Draft draft-ietf-mmusic-sdp-media-capabilities-17 IETF Review
SDP Capability Negotiation Option Tags	RFC 5939 IETF Review
SDP Key Methods	RFC 4568 Standards Action
SDP Media Stream Transports	RFC 4568 Standards Action
SDP Parameters addrtype	RFC 4566 RFC
SDP Parameters att-field (both session and media level)	RFC 4566 Specification Required (Expert: Flemming Andreasen)
SDP Parameters att-field (media level only)	RFC 4566 Specification Required (Expert: Flemming Andreasen)
SDP Parameters att-field (session level)	RFC 4566 Specification Required (Expert: Flemming Andreasen)
SDP Parameters att-field (source level)	RFC 5576 Specification Required
SDP Parameters att-field (unknown level)	RFC 4566 Specification Required (Expert: Flemming Andreasen)
SDP Parameters bwtype	RFC 4566 Standards-Track RFC
SDP Parameters content	RFC 4796 Specification Required
SDP Parameters enckey	RFC 4566 REGISTRY OBSOLETED - No further registrations accepted
SDP Parameters media	RFC 4566 Standards Action
SDP Parameters nettype	RFC 4566 RFC
SDP Parameters proto	RFC 4566 RFC (Standards-Track preferred)
SDP/RTSP key management protocol identifiers	RFC 4567 Specification Required
Semantics for the "group" SDP Attribute	RFC 5888 Standards Action
SRTP Crypto Suite Registrations	RFC 4568 Standards Action
SRTP Session Parameters	RFC 4568 Standards Action
Session Initiation Protocol (SIP) Common Log Format (CLF) Parameters
SIP CLF Transport Flag Values	Internet Draft draft-ietf-sipclf-format-11 IETF Review
SIP CLF Version Values	Internet Draft draft-ietf-sipclf-format-11 IETF Review
Session Initiation Protocol (SIP) Parameters
Compression Schemes	RFC 3486 Standards Action
Event Packages	RFC 3427, RFC 5727, Internet Draft draft-ietf-sipcore-rfc3265bis-09 RFC Required with Designated Expert (Expert: Adam Roach)
Event Template Packages	RFC 3427, RFC 5727, Internet Draft draft-ietf-sipcore-rfc3265bis-09 Standards Action
Geolocation-Error Codes	RFC 6442 Specification Required
Global Feature-Capability Indicator Registration Tree	RFC 6809 Specification Required (Experts: Paul Kyzivat, primary; Christer Holmberg, secondary)
Header Field Parameters and Parameter Values	RFC 3968 IETF Consensus (in the form of a RFC - No requirement that it be standards-track)
Header Fields	RFC 3261, RFC 3427, RFC 5727 Informational Header: Expert Review (Expert - Adam Roach) Standard Header: Standards Action
Identity-Info Algorithm Parameter Values	RFC 4474 Standards Track RFC
Identity-Info Parameters	RFC 4474 Standards Track RFC
Info Packages Registry	RFC 6086 Specification Required (Expert: Adam Roach)
Methods and Response Codes	RFC 3261, RFC 3427, RFC 5727 Standards Action
Option Tags	RFC 3261, RFC 3427, RFC 5727 Standards Action
Precondition Types used with SIP	RFC 3312 Standards track RFCs (section 15)
Preemption Namespaces	RFC 4411 Standards Track Document
Priority Header Field Values	RFC 6878 IETF Review
Privacy Header Field Values	RFC 3323 IETF Review
Proxy-Feature Feature-Capability Indicator Trees	RFC 6809 Standards Action
Reason Codes	Internet Draft draft-ietf-sipcore-rfc3265bis-09 RFC Required
Reason Protocols	RFC 3326 Specification Required
Registry for the Session Initiation Protocol (SIP) NAPTR Resource Record Services Field	RFC 3263 Standards Action
Resource-Priority Priority Values	RFC 4412 Standards Action
Security Mechanism Names	RFC 3329 IETF consensus (section 6)
Service-ID/Application-ID Labels	RFC 6050 Specification Required
SIP Configuration Profile Types	Internet Draft draft-ietf-sipping-config-framework-18 Specification Required
SIP Feature-Capability Indicator Registration Tree	RFC 6809 IETF Review
SIP Forum User Agent Configuration Parameters	RFC 6011 Name begins with 'sfua-': RFC Required. All other names: First Come First Served.
SIP/SIPS URI Parameters	RFC 3969, RFC 5727 Standards Action
Warning Codes	RFC 3261, RFC 3427 RFC publication (section 27.4)
Session Traversal Utilities for NAT (STUN) Parameters
STUN Attributes	RFC 5389 0x0000-0x3FFF: IETF Review. 0x4000-0x7FFF: Designated Expert (Expert: Dan Wing) 0x8000-0xBFFF: IETF Review. 0xC000-0xFFFF: Designated Expert (Expert: Dan Wing)
STUN Error Codes	RFC 5389 IETF Review
STUN Methods	RFC 5389 0x000-0x7FF: IETF Review. 0x800-0xFFF: Designated Expert (Expert: Dan Wing)
Traversal Using Relays around NAT (TURN) Channel Numbers	Internet Draft draft-ietf-behave-turn-16 Standards Action
Shim6 Parameters
Shim6 Error Codes	RFC 5533 Standards Action
Shim6 Options	RFC 5533 Standards Action
Shim6 Types	RFC 5533 Standards Action
Shim6 Verification Methods	RFC 5533 Standards Action
Sieve Extensions
Extensions	RFC 5228 Vendor-controlled: First Come First Served. IETF-controlled: Standards track or IESG-approved experimental RFC.
ManageSieve Capabilities	RFC 5804 Standards Track or IESG-Approved Experimental RFC
ManageSieve Response Codes	RFC 5804 Standards Track or IESG-Approved Experimental RFC
Notification Mechanisms	RFC 5435 Vendor-controlled: First Come First Served. IETF-controlled: Specification Required.
Notification-Capability Parameters	RFC 5435 Vendor-controlled: First Come First Served. IETF-controlled: Specification Required.
Sieve Environment Items	RFC 5183 First Come, First Served if item name begins with "vnd." All others require standards track or experimental RFC.
Sieve URN Parameters	RFC 6134 Specification Required
Signaling Compression (SigComp)
Namespace	RFC 3320 Standards Track RFC approved by the IESG
Signaling User Adaptation Layer Assignments
Message Classes	RFC 4666, RFC 4233, RFC 4165, RFC 4129, RFC 3868, RFC 3807, RFC 3788, RFC 3331 IETF consensus action (section 8.2)
Message Parameters	RFC 4666, RFC 4233, RFC 4165, RFC 4129, RFC 3868, RFC 3807, RFC 3788, RFC 3331 IETF consensus action (section 8.2)
Message Types	RFC 3331, RFC 4666 IETF consensus action (section 8.2)
Simple Authentication and Security Layer (SASL) Mechanisms
SASL Mechanisms	RFC 4422 Mechanisms: First Come First Served. Family Name Registrations: Expert Review with Mailing List. (Expert: Simon Josefsson)
Simple Gateway Monitoring Protocol (SGMP) Vendor Specific Codes
SGMP Vendor Specific Codes (Obsolete)	RFC 1028 No further registrations
Simple Mail Transfer Protocol (SMTP) Enhanced Status Codes
Class Sub-Codes	RFC 5248 Specification Required
Enumerated Status Codes	RFC 5248 Specification Required
Subject Sub-Codes	RFC 5248 Specification Required
Simple Mail Transfer Protocol (SMTP) Service Extensions
Keywords	RFC 1869 Standards track RFC or a document defining an IESG approved experimental protocol
Simple Network Management Protocol (SNMP) Number Spaces
Message Processing Models	RFC 3411 Standards track document (section 6.2)
Security Models	RFC 3411 Standards track document (section 6.1)
SNMP Transport Domains	RFC 2578, RFC 3417, RFC 5590 Specification Required
snmpAuthProtocols	RFC 3411 Standards Track document
SnmpEngineID Formats	RFC 3411, RFC 5343 1-127: Specification Required. 128-255: Enterprise-specific (IANA does not assign).
snmpPrivProtocols	RFC 3411 Standards Track document
Snoop
Datalink Types	RFC 3827 FCFS (26 and above) (10-15 and 19-25 Reserved)
SOCKS Methods
SOCKS Method Values	RFC 1928 Not Defined
Special People Number Registry (SPNR)
Special People Number Registry (SPNR)	n/a Not an IETF Registry. Contact IANA.
Special-Use Domain Names
Special-Use Domain Names	RFC 6761 Standards Action and IESG Approval
Stream Control Transmission Protocol (SCTP) Parameters
Adaptation Code Points	RFC 5061 IETF Consensus
Chunk Flags	RFC 6096 RFC Required
Chunk Parameter Types	RFC 4960 IETF Consensus
Chunk Types	RFC 4960, RFC 6096 IETF Review
Error Cause Codes	RFC 4960 Specification Required
HMAC IDENTIFIERS	RFC 4895 IETF Consensus
SCTP Payload Protocol Identifiers	RFC 4960 First Come First Served
Stringprep Profiles
Profile Names	RFC 3454 IETF consensus (section 10)
Structure of Management Information (SMI) Numbers
Experimental Numbers	RFC 4181, RFC 2578, RFC 1155 Experimental RFCs
ifType definitions	RFC 1213, RFC 2863 Expert Review (Expert: Dan Romascanu)
IPFIX-SELECTOR-MIB Functions	RFC 6615 Expert Review
Message Processing Models	RFC 3411 Please look under Simple Network Management Protocol (SNMP) Number Spaces
mib-2 Numbers	RFC 1213, RFC 2578 RFC Required
Misc Parameters	(?) (?)
mplsStdMIB (SIC)	RFC 4802 Standard Action section 11.2.1
Security Models	RFC 3411 Please look under Simple Network Management Protocol (SNMP) Number Spaces
SMI pib Codes	RFC 3159 Standards Track
SMI Security for Mechanism Codes	? IESG Approval (per 2011-02-03 IESG telechat)
SMI Security for Mechanism msec Codes	(?) IETF Consensus
SMI Security for Mechanism msec content-types	RFC 4534 IETF Consensus
SMI Security for Mechanism msec data-policies	RFC 4534 IETF Consensus
SMI Security for Mechanism msec distributed-operations-methods	RFC 4534 IETF Consensus
SMI Security for Mechanism msec module-identifers	RFC 4534 IETF Consensus
SMI Security for Mechanism msec protocol-identifiers	RFC 4534 IETF Consensus
SMI Security for Mechanism msec rekey-methods	RFC 4534 IETF Consensus
SMI Security for Mechanism msec rekey-reliability-methods	RFC 4534 IETF Consensus
SMI Security for Mechanism msec security-suites	RFC 4534 IETF Consensus
SMI SNMPv2 Codes	RFC 2578 IETF Review
spdActions	RFC 4807 Specification Required and Expert Review (Expert - Wes Hardaker)
Transmission Numbers	RFC 1213 Specification Required
Structured Data Exchange Format (SDXF) Parameters
Compression Methods for SDXF	RFC 3072 RFC or equivalent (section 12.3)
Encryption Methods for SDXF	RFC 3072 RFC or equivalent (section 12.3)
Subsequent Address Family Identifier (SAFI) Parameters
SAFI Values	RFC 4760 1 - 63: Standards Action (Early Allocation available per RFC 4020). 64 - 127: First Come First Served. 128 - 240: Some recognized assignments (see registry), others Reserved. 241 - 254: Private Use (not to be assigned).
Syslog Parameters
Syslog Message Facilities	RFC 3164 IETF Consensus
Syslog Message Severities	RFC 3164 IETF Consensus; Note: REGISTRY FULL.
syslog Structured Data ID Values	RFC 5424 IETF Review
syslog Version Values	RFC 5424 Standards Action
syslog-sign Hash Algorithm Values	RFC 5848 IETF Review
syslog-sign Key Blob Type Values	RFC 5848 IETF Review
syslog-sign Protocol Version Values	RFC 5848 IETF Review
syslog-sign SG Field Values	RFC 5848 IETF Review
syslog-sign Signature Scheme Values	RFC 5848 IETF Review
Telephony Routing over IP (TRIP) Parameters
TRIP Address Families	RFC 3219 Expert review (section 13.3) (Expert - Jonathan Rosenberg)
TRIP Application Protocols	RFC 3219 Expert review (section 13.4) (Expert - Jonathan Rosenberg)
TRIP Attributes	RFC 3219 Specification Required (section 13.2)
TRIP Capabilities	RFC 3219 Specification Required (section 13.1)
TRIP IP Telephony Administrative Domain (ITAD) Numbers	RFC 3219 FCFS (section 13.5)
Telnet Options
Options	RFC 855 IETF Consensus
Sub-options	RFC 855 IETF Consensus
Terminal Type Names
Terminal Type Names	RFC 1091 (?)
Timed Efficient Stream Loss-tolerant Authentication (TESLA) Parameters
TESLA-MAC Values	RFC 4442 Expert Review by the MSEC working group or its designated successor
TESLA-PRF Values	RFC 4442 Expert Review by the MSEC working group or its designated successor
TLS-based Posture Transport Protocol (PT-TLS)
PT-TLS Error Codes	RFC 6876 Specification Required
PT-TLS Message Types	RFC 6876 Specification Required
Trailer Types
Trailer Types	RFC 6081 Specification Required
Transfer Encodings
Transfer Encoding Names	RFC 4289 Standards Action
Transmission Control Protocol (TCP) Header Flags
Header Flags	RFC 2780, RFC 3168 Standards action process
Transmission Control Protocol (TCP) Parameters
Cryptographic Algorithms for TCP-AO Registration	Internet Draft draft-ietf-tcpm-tcp-ao-crypto-03 RFC Publication After Expert Review
MPTCP Handshake Algorithms	RFC 6824 Standards Action
MPTCP Option Subtypes	RFC 6824 Standards Action
TCP Alternate Checksum Numbers	RFC 1146 (?)
TCP Experimental Option Experiment Identifiers (ExIDs)	Internet Draft draft-ietf-tcpm-experimental-options-06 First Come First Served
TCP Option Numbers	RFC 2780 IESG Approval or Standards Action
Transparent Interconnection of Lots of Links (TRILL) Parameters
RBridge Channel Error Codes	Internet Draft draft-ietf-trill-rbridge-channel-08 Standards Action
RBridge Channel Header Flags	Internet Draft draft-ietf-trill-rbridge-channel-08 IETF Review
RBridge Channel Protocols	Internet Draft draft-ietf-trill-rbridge-channel-08 0x002-0x0FF: Standards Action. 0x100-0xFF7: RFC Required for allocation of a single value, IESG Approval for allocation of multiple values.
TRILL Extended Header Flags	Internet Draft draft-ietf-trill-rbridge-extension-05 IETF Review
TRILL Multicast Addresses	RFC 6325 IETF Review
TRILL Nicknames	RFC 6325 RFC Required (single value) or IETF Review (single or multiple values)
Transport Layer Security (TLS)
Alert Registry	RFC 5246 Standards Action
Certificate Types	RFC 6091 RFC Required
Cipher Suite Registry	RFC 5246 First byte in range 0-191 (decimal) Standards Action, First byte in range 192-254 (decimal) Specification Required (Expert: Eric Rescorla), First byte in range 255 (decimal) Private Use
ClientCertificateType Identifiers Registry	RFC 5246 0-63 Standards Action, 64-223 Specification Required (Expert: Eric Rescorla), 224-255 Private Use
Compression Method Identifiers	RFC 3749 0-63: Standards Action, 64-223: Specification Required (Expert: Eric Rescorla), 224-255: Private Use
ContentType Registry	RFC 5246 Standards Action
EC Curve Type Registry	RFC 4492 IETF Consensus
EC Named Curve Registry	RFC 4492 IETF Consensus
EC Point Format Registry	RFC 4492 IETF Consensus
ExtensionType Values	RFC 5246 IETF Consensus
HandshakeType Registry	RFC 5246 Standards Action
HashAlgorithm Registry	RFC 5246 0-63 Standards Action, 64-223 Specification Required (Expert: Eric Rescorla), 224-255 Reserved for Private Use
Heartbeat Message Types	RFC 6520 Expert Review (Expert: Eric Rescorla)
Heartbeat Modes	RFC 6520 Expert Review (Expert: Eric Rescorla)
SignatureAlgorithm Registry	RFC 5246 0-63 Standards Action, 64-223 Specification Required (Expert: Eric Rescorla), 224-255 Reserved for Private Use
TLS Authorization Data Formats	RFC 5878 0-63: IETF Review. 64-223: Specification Required.
TLS Certificate Status Types	Internet Draft draft-ietf-tls-multiple-cert-status-extension-08 IETF Review
TLS Exporter Label Registry	RFC 5705 Specification Required
TLS Supplemental Data Formats (SupplementalDataType)	RFC 4681 0-16385 Standards Action, 16386-65279 IETF Consensus, 65280-65535 Private Use
TLS UserMappingType Values	RFC 4681 0-63 Standards Action, 64-223 Specification Required (Expert: Eric Rescorla), 224-255 Private Use
TSIG Algorithm Names
Algorithm Names	RFC 2845 IETF consensus policy (section 7)
Tunnel Setup Protocol (TSP) Parameters
Tunnel Types	RFC 5572 First Come First Served
Two-way Active Measurement Protocol (TWAMP)
TWAMP-Control Command Numbers	RFC 5357, RFC 5938 IETF Consensus
TWAMP-Modes	RFC 5618, RFC 5938 IETF Review
Undirectional Lightweight Encapsulation (ULE)
Next-Header Registry	RFC 4326 0-255: Expert review or RFC Required (Expert - Gorry Fairhurst) 256-511: Expert review or RFC Required (Expert - Gorry Fairhurst)
Uniform Resource Identifier (URI) Schemes
"about" URI Tokens	RFC 6694 First Come First Served
geo URI crs Parameter Values	RFC 5870 IESG Approval with Specification Required
geo URI Parameters	RFC 5870 Specification Required
tel URI Parameters	RFC 5341 Expert Review with Specification Required (Expert - Vijay Gurbani)
URI Schemes	RFC 4395 Expert Review (Graham Klyne)
Well-Known URIs	RFC 5785 Expert Review (Expert: Mark Nottingham)
Uniform Resource Name (URN) Namespace for IETF Use
IETF URN Sub-namespace for Registered Protocol Parameters	RFC 3553 IETF Review
IETF URN Sub-namespaces	RFC 6924 IETF Review
Uniform Resource Names (URN)
'counseling' Sub-Services	RFC 5031 Expert Review
'sos' Sub-Services	RFC 5031 Expert Review
'test' Sub-Services	RFC 6881 Expert Review
Formal Namespaces	RFC 3406 IETF consensus action
Informal Namespaces	RFC 3406 Two week review period on urn-nid discussion list (expert-Leslie Daigle), then FCFS
Service URN Labels	RFC 5031 Standards Action
vCard Elements
vCard Parameter Values	RFC 6350 Expert Review (Primary: Simon Perreault; Backups: Cyrus Daboo, Peter Saint-Andre) and RFC Required
vCard Parameters	RFC 6350 No namespace specified: Expert Review (Primary: Simon Perreault; Backups: Cyrus Daboo, Peter Saint-Andre) and RFC Required. Vendor namespace specified: First Come First Served.
vCard Properties	RFC 6350 No namespace specified: Expert Review (Primary: Simon Perreault; Backups: Cyrus Daboo, Peter Saint-Andre) and RFC Required. Vendor namespace specified: First Come First Served.
vCard Property Values	RFC 6350 Expert Review (Primary: Simon Perreault; Backups: Cyrus Daboo, Peter Saint-Andre) and RFC Required
vCard Value Data Types	RFC 6350 Expert Review (Primary: Simon Perreault; Backups: Cyrus Daboo, Peter Saint-Andre) and RFC Required
VCDIFF Secondary Compressor ID Values
VCDIFF Secondary Compressor ID Values	RFC 3284 RFC or peer-reviewed permanent and readily available reference. Subject to the above, name assignments are FCFS. (section 15)
Version Numbers
Version Numbers	RFC 2780 IETF standards action
Version Symbols Used Within the Integrated Services User Port (ISUP) and QSIG
Application/ISUP Symbols	RFC 3204 Expert review (section 6) (experts - Primary: Jon Peterson, Secondary: Mark Watson)
Application/QSIG Symbols	RFC 3204 Expert review (section 6) (experts - Primary: Jon Peterson, Secondary: Mark Watson)
WAVE and AVI Codec Registries
WAVE and AVI Codec Registries (Historic Registry)	RFC 2361 IANA does not assign. Republication of values. (section 3)
WebSocket Protocol
WebSocket Close Code Number Registry	RFC 6455 1000-2999: "Standards Action", "Specification Required" (Expert: Alexey Melnikov) or "IESG Review". 3000-3999: First Come First Served.
WebSocket Extension Name Registry	RFC 6455 First Come First Served
WebSocket Framing Header Bits Registry	RFC 6455 Standards Action
WebSocket Opcode Registry	RFC 6455 Standards Action
WebSocket Subprotocol Name Registry	RFC 6455 First Come First Served
WebSocket Version Number Registry	RFC 6455 Standard Version Numbers - IETF Review; Interim Version Numbers - Expert Review (HYBI WG Chairs)
Wrapped Encapsulating Security Payload (WESP)
WESP Flags	RFC 5840 IETF Review
WESP Version Numbers	RFC 5840 Standards Action
X.25 Type Numbers
X.25 Type Numbers	Not defined by an RFC IANA does not assign. Republication of values only.
Xerox Network System (XNS) Protocol Types
Assigned Internet Packet Types	Not defined by an RFC IANA does not assign. Republication of values only.
Assigned Well-Known Socket Numbers	Not defined by an RFC IANA does not assign. Republication of values only.
XML - Extensible Markup Language
IETF XML Registry	RFC 3688 First Come First Served with Specification Required (NS experts: Graham Klyne, Julian Reschke; Schema expert: Jari Urpalainen)
XML-XCAP Application Unique IDs	RFC 4825 Standards Track RFC
XML Evidence Record Syntax (XMLERS)
Cryptographic Information Type	Internet Draft draft-ietf-ltans-xmlers-11 RFC Required
Time-Stamp Token Type	Internet Draft draft-ietf-ltans-xmlers-11 RFC Required
XML Security URIs
XML Security URIs	Internet Draft draft-eastlake-additional-xmlsec-uris-10 Specification Required
YANG Parameters
YANG Module Names	RFC 6020 RFC Required