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IANA Matrix for Protocol Parameter Assignment/Registration Procedures


This page provides information about the procedures for assignments and registrations in IANA registries.

These registries can be found on the IANA website.

IANA Matrix

The following is a matrix of information regarding IANA registries.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A
Related Registry Defining RFC Registration/Assignment Procedures
Ad Hoc On Demand Distance Vector (AODV)
AODV Message Types RFC3561 Standards action. (section 12)
Extension Type RFC3561 Standards action. (section 12)
Address Family Numbers
Address Family Numbers RFC2453, RFC2858 25-16383: Standards Action with Early Assignment 16384-32767: FCFS 32768-65535: Reserved
Address Resolution Protocol (ARP) Parameters
Hardware Types RFC826 (?)
Inverse Address Resolution Protocol Operation Codes RFC826 (?)
Protocol Type RFC826 See the following registry: http://www.iana.org/assignments/ethernet-numbers
Applicable Exchange Core (APEX) Parameters
APEX Endpoint Applications RFC3340 Expert review (Appendix B)
APEX Options RFC3340 Expert review (Appendix B)
APEX Services RFC3340 Expert review (Appendix B)
Application Access Protocol (ACAP) Parameters
ACAP Capabilities RFC2244 Recommended working group review (section 7.1)
ACAP Response Codes RFC2244 Recommended working group review (section 7.2)
Dataset Classes RFC2244 RFC (standards track or experimental) (section 7.3)
Vendor Subtree RFC2244 FCFS (section 7.4)
Atom Link Relations
Atom Link Relations RFC4287 IESG Approval (via request to IANA)
Authenticated Encryption with Associated Data (AEAD) Parameters
AEAD Algorithms RFC5116 1-32767: Specification Required. 32768-65535: Private Use.
Authentication and Key Agreement (AKA)
Version Namespace RFC3310 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 RFC3588 0-16777215 - Standards Track 16777216-4294967294 - Vendor-Specific (First Come First Served) (section 11.3)
AVP Codes RFC3588 Allocated by a designated expert with a specification. If more than 3 are needed, IETF consensus. (Expert-Bert Wijnen) (section 11.1.1)
AVP Flags Value RFC3588 Standards Action Process (section 11.1.2)
AVP Specific Values RFC3588 IETF consensus (section 11.4)
Command Codes RFC3588 314-16,777,213 Unallocated (IETF Consensus) (section 11.2.1)
Command Flags RFC3588 0-7: Standards Action (section 11.2.2)
Automatic Responses to Electronic Mail Parameters
Auto-Submitted header field keywords RFC3834 IETF Consensus
Auto-Submitted header field optional parameters RFC3834 IETF Consensus
Autonomous System (AS) Numbers
AS Numbers (Blocks of 1024 Numbers) RFC1930 RIR request to the IANA
B
Related Registry Defining RFC Registration/Assignment Procedures
Binary Floor Control Protocol (BFCP) Parameters
Attribute Subregistry RFC4582 Standards-Track RFC
Error Code Subregistry RFC4582 Standards-Track RFC
Primitive Subregistry RFC4582 Standards-Track RFC
Request Status Subregistry RFC4582 Standards-Track RFC
Blocks Extensible Exchange Protocol (BEEP) Parameters
BEEP Features RFC3080 Expert review (Appendix B) (Expert-Marshall T. Rose)
BEEP Profiles RFC3080 Expert review (Appendix B) (Expert-Marshall T. Rose)
Border Gateway Protocol (BGP) Parameters
BGP Cease NOTIFICATION message subcodes RFC4486 Standards Action or Early IANA Allocation process
BGP Data Collection Standard Communities RFC4384 IETF Consensus [usually through the Global Routing Operations Working Group (grow)]
BGP Error Codes RFC4271 Standards Action or Early IANA Allocation process
BGP Error Subcodes RFC4271 Standards Action or Early IANA Allocation process
BGP Extended Communities Types RFC4360 regular, transitive 0x90-0xbf : Standards Action/Early Allocation 0x00-x3f : FCFS regular, non-transitive 0xd0-0xff : Standards Action/Early Allocation 0x40-0x7f : FCFS extended, transitive 0x9000-0xbfff : Standards Action/Early Allocation 0x0000-0x3ffff : FCFS extended, non-transitive 0xd000-0xffff : Standards Action/Early Allocation 0x4000-0x7fff : FCFS
BGP Message Types RFC4271 Standards Action or Early IANA Allocation process
BGP Path Attributes RFC4271 Standards Action or Early IANA Allocation process
Capability Codes RFC3392 Values 1-63: IETF consensus Values 64-127: FCFS
IPv4 Address Specific Extended Community RFC4360 First Come First Serve
Opaque Extended Community RFC4360 First Come First Serve
Two-octet AS Specific Extended Community RFC4360 First Come First Serve
Well-known Communities RFC1997 Not Defined
Building Blocks
Building Blocks RFC3048 RFC (specification required) (section 6)
C
Related Registry Defining RFC Registration/Assignment Procedures
Caller-ID Numbering Plans
Tokens RFC3939 Standards-track RFC
Candidate Access Router Discovery (CARD) Parameters
SEAMOBY AVP Type Registry RFC4065 Expert Review (Expert - James Kempf)
SEAMOBY Experimental Mobility Protocol Subtype Registry RFC4065 Specification Required and IESG Review
SEAMOBY Layer 2 Access Technology Identifier Registry RFC4065 Specification Required
CERT RR Certificate Types
Certificate Types RFC4398 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).
Character Sets
Character Sets RFC2978 Expert Review (Primary Expert Ned Freed and Secondary Expert Martin Duerst)
Mailing List Information RFC2978 N/A
Registration Templates RFC2978 Expert Review (Primary Expert Ned Freed and Secondary Expert Martin Duerst)
Common Name Resolution Protocol (CNRP) Parameters
Properties, Property Types, and Status Messages RFC3367 FCFS (section 10)
Common Open Policy Service (COPS) Protocol Parameters
A-Types and Sub-Types RFC3182 0-127: IETF consensus 128-255: Private use (section 8)
Auth_Session X-Types and Sub-Types RFC3520 0-127: IETF consensus 128-255: Private use (section 8)
C-Num and C-Type Values RFC2748 IETF consensus (section 6)
Client Types Values RFC2748 0x001-0x3FF: COPS extension document 0x4000-0x7FFF: Private Use 0x8000-0xFFFF: FCFS (section 6)
Error sub-codes defined for messages containing Client-type = 0 RFC4261 IETF Consensus
Error Values RFC3182 0-32767: IETF consensus 32768-65535: Private use (section 8)
M-Types, Reason Sub-Codes, and Error Sub-Codes RFC2748 Same IANA considerations as respective client type (section 6)
P-Type RFC3181 IETF Consensus (section 7)
R-Types, Reason-Codes, Report-Types, Decision Object Command-Codes/Flags, and Error Codes RFC2748 IETF consensus (section 6)
S-Num, S-Types, and Error-Codes RFC3084 IETF consensus (section 9)
X-Types and Sub Types (?) (?)
Common Presence and Instant Messaging (CPIM)
CPIM Headers RFC3862 Standards Track RFC
Context Labels for Internet Messages
Internet Messages Content Types RFC3458 RFC (specification required) (section 8)
Context Transfer Protocol (CXTP) Parameters
SEAMOBY Context Transfer Profile Type Registry RFC4065 Expert Review (Expert - James Kempf)
SEAMOBY Context Transfer Protocol Authorization Token Calculation Algorithms RFC4065 Specification Required
Cryptographic Suites for IKEv1, IKEv2, and IPsec
Identifiers RFC4308 RFC and expert review (Expert - Tero Kivinen)
Cryptographically Generated Addresses (CGA) Name Space
CGA Extension Type Values RFC4581 Standards Action
CGA SEC RFC4982 Standards Action
CGA Type Tags RFC3972 First Come First Serve (FCFS)
D
Related Registry Defining RFC Registration/Assignment Procedures
Datagram Congestion Control Protocol (DCCP) Parameters
Ack Vector States RFC4340 Standards Track RFC
Congestion Control Identifiers RFC4340 IETF Consensus (IETF RFC publication)
Drop Codes RFC4340 Standards Track RFC
Feature Numbers RFC4340 IETF Consensus (IETF RFC publication)
Option Types RFC4340 IETF Consensus (IETF RFC publication)
Packet Types RFC4340 Standards Track RFC
Port Numbers RFC4340 0-49151: Review of application template (section 19.9) Reviewer: Eddie Kohler 49152-65535: Private Use
Profile for DCCP Congestion Control ID 2: TCP-like Congestion Control Parameters - Feature Numbers RFC4341 Standards Track RFC
Profile for DCCP Congestion Control ID 2: TCP-like Congestion Control Parameters - Option Types RFC4341 Standards Track RFC
Profile for DCCP Congestion Control ID 2: TCP-like Congestion Control Parameters - Reset Codes RFC4341 Standards Track RFC
Profile for DCCP Congestion Control ID 3: TFRC Congestion Control Parameters - Feature Numbers RFC4342 Standards Track RFC
Profile for DCCP Congestion Control ID 3: TFRC Congestion Control Parameters - Option Types RFC4342 Standards Track RFC
Profile for DCCP Congestion Control ID 3: TFRC Congestion Control Parameters - Reset Codes RFC4342 Standards Track RFC
Reset Codes RFC4340 IETF Consensus (IETF RFC publication)
Service Codes RFC4340 Specification Required or First Come First Serve
Delegation Signer Resource Record
Digest Algorithms RFC3658 Standards Action
Delivery Status Notification (DSN) Types
address-types, diagnostic-types, MTA-name-types RFC3464 (?)
Diameter
AAA Parameters RFC3588 See AAA-Parameters
Differentiated Services Field Codepoints
Pools RFC2474 Pool 1: Standards action Pool 2: Expiramental or local use/standardized assignments if Pool 1 exhausted (section 6)
Directory System Names
Directory System Names RFC4520 Registry Closed
DNS Header Flags and EDNS Header Flags
DNS Header Flags RFC2535 KEY RR flag bits 2 and 8-11 and all flag extension field bits: IETF consensus NAMTYP bits and bits 4 and 5: IETF standards action (section 11)
EDNS Header Flags RFC2671 Extended Label Type or Version Number: IESG approval Option Code: RFC (section 7)
DNSSEC NSEC3 Parameters
DNSSEC NSEC3 Flags RFC-ietf-dnsext-nsec3-13.txt Standards Action
DNSSEC NSEC3 Hash Algorithms RFC-ietf-dnsext-nsec3-13.txt Standards Action
DNSSEC NSEC3PARAM Flags RFC-ietf-dnsext-nsec3-13.txt Standards Action
Domain Name System (DNS)
KEY Flags RFC3755 Standards Action
SSHFP Resource Record Parameters RFC4255 IETF Consensus
Domain Name System (DNS) Key Resource Record Protocol Octet
DNS Key Resource Record Protocol Octet Values RFC2535 Registry now closed by RFC 3445.
Domain Name System (DNS) Parameters
DHCID RR type codes RFC4701 Standards Action
DNS EDNS0 Options RFC5001 Specification required
Domain System Class RFC2929 (?)
Domain System Operation Code RFC1035 and RFC2929 IETF Standards Action.
Domain System Response Code RFC (?) (?)
Resource Record (RR) Types and Q-Types RFC1035 and RFC2929 Expert Review (Experiment Expert - Ed Lewis)
Domain Name System (DNS) Security Algorithm Numbers
DNS Security Algorithm Numbers RFC2535 5-251: IETF standards action 253-254: Private use (section 11)
Dynamic Host Configuration Protocol (DHCP)
Algorithm Name Space Values RFC3118 IETF consensus (section 6)
Protocol Name Space Values RFC3118 IETF consensus (section 6)
RDM Name Space Values RFC3118 IETF consensus (section 6)
Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP)
Authentication Suboption (value 8) number-spaces - Algorithm identifier values RFC4030 IETF Consensus
Authentication Suboption (value 8) number-spaces - RDM Algorithm identifier values RFC4030 IETF Consensus
BOOTP Vendor Extensions and DHCP Options RFC2939 IETF Consensus
CableLabs Client Configuration Option Ticket Control Mask Bit Definitions RFC3594 IETF Consensus (section 5)
DHCP Agent Sub-Option Codes RFC3046 IETF Consensus
DHCP Cablelabs Client Configuration Option Type 122 Sub-Option Codes RFC3495 IETF Consensus
DHCP Message Type 53 Values RFC2939 IETF Consensus
GeoConf Option fields - The Altitude (AT) Field RFC3825 Standards Action
GeoConf Option fields - The Datum field RFC3825 Standards Action
Network/IP Option Type 63 Sub-Option Codes RFC2242 ?
Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
DUIDs RFC3315 Standards Action Process (section 24.5)
Dynamic Host Configuration Protocol (DHCP) Message Types RFC3315 Standards Action Process (section 24.2)
Dynamic Host Configuration Protocol (DHCP) Options RFC3315 Standards Action Process (section 24.3)
OPTION_LQ_QUERY option RFC5007 Standards Action
Status Codes RFC3315 Standards Action Process (section 24.4)
Dynamic Source Routing Protocol (DSR)
DSR Protocol Options RFC4728 Expert Review (Experts - David B. Johnson, David A. Maltz and Yih-Chun Hu)
DSR Protocol Route Error Types RFC4728 Expert Review (Experts - David B. Johnson, David A. Maltz and Yih-Chun Hu)
E
Related Registry Defining RFC Registration/Assignment Procedures
Electronic Commerce Language (ECML)
Parameter Values RFC4112 IESG Approval
Electronic Commerce Language Version 2 (ECMLv2)
Ecom_Payment_Card_Protocol Registry RFC4112 Expert Review (Expert - Donald Eastlake)
Ecom_Payment_Card_Type Registry RFC4112 Expert Approval (Expert - Donald Eastlake)
Ecom_Transaction_Type Registry RFC4112 Expert Review (Expert - Donald Eastlake)
Enterprise Numbers
Enterprise Numbers RFC2578 First Come First Serve. (use online template) http://pen.iana.org/pen/PenApplication.page
ENUM - Telephone Number Mapping
Enumservice Registrations RFC3761 Require an RFC approved by the IESG
Ethernet Numbers
Ethernet Numbers RFC (?) (?)
Extensible Provisioning Protocol (EPP)
EPP Repository IDs RFC3730 FCFS
Extensible Authentication Protocol (EAP)
EAP EXT_Type Numbers RFC4764 Designated Expert with Specification Required
EAP-AKA and EAP-SIM Parameters RFC4187 Specification Required
EAP-FAST Error-TLV Error-Codes RFC4851 Specification Required
EAP-FAST TLV Types RFC4851 Specification Required
EAP-IKEv2 Payloads RFC5106 Expert Review
EAP-PAX ADE Type Namespace RFC4746 IESG Expert via EAP WG mailing list
EAP-PAX DH Group ID Namespace RFC4746 IESG Expert via EAP WG mailing list
EAP-PAX MAC ID Namespace RFC4746 IESG Expert via EAP WG mailing list
EAP-PAX Public Key ID Namespace RFC4746 IESG Expert via EAP WG mailing list
EAP-POTP Cryptographic Algorithm Identifiers RFC4793 Specification Required and IESG Approval
EAP-SAKE messages RFC4763 IETF Consensus with Specification Required
EAP-SAKE non-skippable attributes RFC4763 IETF Consensus with Specification Required
EAP-SAKE skippable attributes RFC4763 IETF Consensus with Specification Required
Method Types RFC3748 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 RFC3748 Standards Action
Request-Action TLV Action Codes RFC4851 Specification Required
F
Related Registry Defining RFC Registration/Assignment Procedures
Fibre Channel (FC)
Port Types RFC4044 Standard Range: 1-9999 Expert Review and Specification Required (Expert - Claudio DeSanti); Private Use: 10000-99999
Foobar AF Numbers
Foobar AF Numbers RFC1639 IANA assignment (section 2)
FTP parameters
OS specific FTP parameters RFC3659 See Specific Parameters under Operating System Names
G
Related Registry Defining RFC Registration/Assignment Procedures
Generalized Multi-Protocol Label Switching (GMPLS) Signaling Parameters
Actions RFC3471 IETF Consensus action or documented in a specification (section 12)
Administrative Status Information Flags RFC4783 IETF Standards Action RFC
Association Type RFC4872 IETF Standards Action RFC
Generalized PID (G-PID) RFC3471 0-31743 IETF Standards Track RFC 31744-32767 Assigned Temporarily for Experimental Usage 32768-65535 Not Assigned
Interface_ID Types RFC3471 IETF Consensus action or documented in a specification (section 12)
LSP Encoding Types RFC3471 0-239 IETF Standards Track RFC 240-255 Assigned temporarily for Experimental Usage (Not registered with IANA)
Switching Types RFC3471 0-255 IETF Standards Track RFC
Generic Routing Encapsulation (GRE) Parameters
GRE Protocol Types RFC2784 IANA does not assign
GRE Version Numbers RFC2784 IETF consensus
Generic Security Service Application Program Interface (GSSAPI) Service Names
GSSAPI/Kerberos/SASL Service Names RFC2743 Specification Required. Registrations are restricted to alpha-numeric, plus the following characters: '+', '-' and '.'
Geopriv Location Object Registries
Method Tokens associated with the PIDF-LO Object RFC4119 First Come First Serve
XML Namespaces for 'provided-by' elements for use with PIDF-LO objects RFC4119 Expert Review (Allison Mankin-Primary, Jon Peterson-Secondary)
Geopriv Location Type Registries
CAtypes RFC4776 Specification Required, Expert Review (Martin Thomson)
Location Type Registry RFC4589 Expert Review (Martin Thomson) Section 5.1
Location Type Registry XML RFC4589 Expert Review (Martin Thomson) Section 5.1
Global Switch Management Protocol version 3 (GSMPv3) Parameters
GSMPv3 Adaptation Type Name Space RFC3292 0x000-0x2FF: IETF consensus 0x300-0xFFF: FCFS (section B5)
GSMPv3 Event Flag Type Name Space RFC3292 Expert Review (Experts - Stefaan De Cnodder and Avri Doria)
GSMPv3 Failure Response Message Name Space RFC3292 0-59, 80-127, 160-255: IETF consensus 60-79, 128-159: Reserved for vendor private use (section B4)
GSMPv3 Label Type Name Space RFC3292 0x000-0xAFF: IETF consensus 0xB00-0xEFF: RFC 0xF00-0xFFF: Reserved for vendor private use (section B2)
GSMPv3 Message Type Name Space RFC3292 0-99: IETF consensus 100-199: RFC 200-249: RFC 250-255: Reserved for vendor private use (section B1)
GSMPv3 Model Type Name Space RFC3292 0: IETF consensus 1-200: RFC 201-255: Reserved for vendor private use (B6)
GSMPv3 Port Type Name Space RFC3292 0-127: IETF consensus 128-255: RFC (section B7)
GSMPv3 Result Type Name Space RFC3292 Expert review (Experts - Stefaan De Cnodder and Avri Doria)
GSMPv3 Service ID Type Name Space RFC3292 0-1023: IETF consensus 1024-65535: RFC (section B8)
GSMPv3 Traffic Control Type Name Space RFC3292 Expert Review (Experts - Stefaan De Cnodder and Avri Doria)
Global Switched Telephone Network (GSTN) Extensions
Qual2-Label RFC2846 (?)
Qualif-Type 1 RFC2846, RFC3191, RFC3192 RFC (section ?)
Service Selector RFC2846 and 3191 RFC (section ?)
Group Domain of Interpretation (GDOI)
Payload Type Values RFC3547 Standards Action
H
Related Registry Defining RFC Registration/Assignment Procedures
Hash Function Textual Names
Hash Function Names RFC4572 Standards-track RFCs which update or obsolete [RFC3279]
Host Identity Protocol (HIP) Parameters
DI-Types RFC-ietf-hip-base-10.txt IETF Consensus
Group IDs RFC-ietf-hip-base-10.txt IETF Consensus
HIP Version RFC-ietf-hip-base-10.txt IETF Consensus
Notify Message Types RFC-ietf-hip-base-10.txt 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-ietf-hip-base-10.txt IETF Consensus
Parameter Types RFC-ietf-hip-base-10.txt 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-draft-ietf-hip-registration-02.txt 0-200: IETF Consensus. 201-255: Private Use.
Registration Types RFC-draft-ietf-hip-registration-02.txt 0-200: IETF Consensus. 201-255: Private Use.
Suite IDs RFC-ietf-hip-base-10.txt IETF Consensus
Hypertext Transfer Protocol (HTTP) Digest Algorithm Values
HTTP Digest Algorithm Values RFC3230 Specification Required
Hypertext Transfer Protocol (HTTP) Parameters
Content-Coding Values RFC2616 First Come First Serve with specification recommended
Transfer-Coding Values RFC2616 First Come First Serve with specification recommended
Hypertext Transfer Protocol (HTTP) Status Codes
HTTP Status Codes RFC2817 RFC and FCFS (section 10.2)
Hypertext Transfer Protocol (HTTP) Upgrade Tokens
HTTP Upgrade Tokens RFC2817 FCFS (must follow rules set forth in BCP 26) (section 7)
I
Related Registry Defining RFC Registration/Assignment Procedures
IANA Maintained MIBs
IANA Address Family Numbers MIB (?) (?)
IANA Charset MIB RFC3808 See Character Sets
IANA Finisher MIB RFC3806 (?)
IANA GMPLS TC MIB RFC4802 See individual GMPLS registry procedures
IANA ifTypes MIB RFC2863 Expert Review (Experts - Dan Romascanu and Keith McCloghrie)
IANA IP Route Protocol MIB RFC2932 RFC or expert review (Expert - Dave Thaler)
IANA IPPM Metrics Registry MIB RFC4148 Specification Required
IANA ITU Alarm TC MIB RFC3877 (?)
IANA Language MIB Definitions RFC3165 Expert Review (Experts - Juergen Schoenwaelder and David Levi)
IANA MALLOC MIB RFC3559 RFC or designated expert review. (section 4) (Expert - Dave Thaler)
IANA MAU MIB RFC4836 Operations and Management Area Director (Dan Romascanu); 'hubmib' working group chair (Bert Wijnen)
IANA Printer MIB RFC3805 (?)
IANA Tn3270eTC MIB RFC2561 Working Group Review (see DESCRIPTION clause associated with the MODULE-IDENTITY statement)
IEEE 802 Numbers
IEEE 802 Numbers RFC (?) Assigned by IEEE standards office
IETF Protocol Parameter Identifiers
IETF URN Sub-namespace for Registered Protocol Parameters RFC3553 IETF Consensus
Instance Manipulation Values
Instance Manipulation Values RFC (?) (?)
Instant Messaging SRV Protocol
Label Registry RFC3861 Specification Required
Integrated Service Parameters
Compression Hints RFC3006 IETF Consensus
Parameter Names RFC2216 1-127: Parameters defined in RFC 2215 128-254: Parameters defined by author of service specification document (Service and Data Element Naming)
Service Names RFC2216 2-127: RFC 127 and above: Experimental use (Service and Data Element Naming)
Internationalized Domain Names (IDN)
IANA Repository of TLD IDN Practices RFC3743 See http://www.iana.org/assignments/idn/
Internet Application Protocol
Collation Registry RFC4790 Expert review via mailing list (Expert - Arnt Gulbrandsen)
Internet Control Message Protocol (ICMP) Parameters
"Code" Fields RFC (?) (?)
ICMP Extension Objects Classes RFC4950 0-246 First Come First Serve 247-255 Private Use
ICMP Type Numbers RFC2939 (?) RFC (section 7)
Internet Control Message Protocol version 6 (ICMPv6) Parameters
"Code" Fields RFC2463 (?) (?)
IPv6 Neighbor Discovery Option Formats RFC2463 (?) (?)
IPv6 Type Numbers RFC2463 (?) (?)
Qtypes RFC-ietf-ipngwg-icmp-name-lookups-15.txt IETF Consensus
Internet Group Management Protocol (IGMP) Type Numbers
"Code" Fields RFC3228 IESG approval or standards action (section 2)
IGMP Type Numbers RFC3228 IESG approval or standards action (section 2)
Internet Key Exchange (IKE) Attributes
IKE Attributes RFC2409 RFC (standards track) (section 11.1)
Internet Key Exchange Version 2 (IKEv2) Parameters
Authentication Methods RFC4306 Expert Review (Expert-Tero Kivinen)
Certificate Encodings RFC4306 Expert Review (Expert-Tero Kivinen)
Configuration Payload Attribute Types RFC4306 Expert Review (Expert-Tero Kivinen)
Configuration Payload CFG Types RFC4306 Expert Review (Expert-Tero Kivinen)
Diffie-Hellmann Transform Ids RFC4306 Expert Review (Expert-Tero Kivinen)
Encryption Transform IDs RFC4306 Expert Review (Expert-Tero Kivinen)
Exchange Types RFC4306 Expert Review (Expert-Tero Kivinen)
Identification Payload ID Types RFC4306 Expert Review (Expert-Tero Kivinen)
Integrity Algorithm Transform IDs RFC4306 Expert Review (Expert-Tero Kivinen)
Notification IPCOMP Transform IDs RFC4306 Expert Review (Expert-Tero Kivinen)
Notify Message Types RFC4306 Expert Review (Expert-Tero Kivinen)
Payload Types RFC4306 Expert Review (Expert-Tero Kivinen)
Pseudo-random Function Transform IDs RFC4306 Expert Review (Expert-Tero Kivinen)
Security Protocol Identifiers RFC4306 Expert Review (Expert-Tero Kivinen)
Traffic Selector Types RFC4306 Expert Review (Expert-Tero Kivinen)
Transform Attribute Types RFC4306 Expert Review (Expert-Tero Kivinen)
Transform Types RFC4306 Expert Review (Expert-Tero Kivinen)
Internet Message Access Protocol (IMAP) 4 Capabilities
IMAP 4 Cabapilities RFC3501 IETF Consensus
IMAP4 List Extended RFC-ietf-imapext-list-extensions-18.txt IANA approval Template is at [RFCietf-imapext-list-extensions-18.txt] section 9.3
Internet Open Trading Protocol (IOTP) Codes
IOTP Codes RFC2801 (?) (Expert-David Burdett)
Internet Printing Protocol (IPP) Registrations
Attribute Group Tags RFC2911 Expert review/assignment (Expert-Carl Uno Manros)
Attribute Syntaxes RFC2911 Expert review/assignment (section 6.3) (Expert-Carl Uno Manros)
Enum Attribute Values RFC2911 type1: IETF consensus type2: Mailing list and expert review (Expert-Carl Uno Manros) type3: Expert review (possible mailing list) (Expert-Carl Uno Manros) (section 6.1)
Keyword Attribute Values RFC2911 type1: IPP specification document revision or IETF standards track document type2: Mailing list and expert review (Expert-Carl Uno Manros) type3: Mailing list and expert review (Expert-Carl Uno Manros)
Operations RFC2911 RFC (standards track) and expert review/assignment (section 6.4) (Expert-Carl Uno Manros)
Out-of-Band Attribute Group Tags RFC2911 Expert review/assignment (section 6.6) (Expert-Carl Uno Manros)
Status Codes RFC2911 Expert review/assignment (section 6.6) (Expert-Carl Uno Manros)
Internet Protocol (IP) Option Numbers
IP Option Numbers RFC2780 IESG Approval, IETF Consensus or Standards Action
IP Time to Live Parameter RFC (?) (?)
Recommended values for TOS RFC (?) (?)
Internet Protocol (IP) Version Number
IP TOS Paramters RFC (?) (?)
IP Version Number RFC (?) (?)
Internet Protocol version 4 (IPv4) Address Space
IPv4 Address Space RFC2050 IANA allocates to Regional Internet Registries (RIR's) based on established need. (section 1.3)
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 RFC3168 RFC (section 23)
Internet Protocol version 6 (IPv6) Address Space
IPv6 Address Space RFC2373 Defined and Registered by the IANA.
Internet Protocol version 6 (IPv6) Anycast Address Allocations
IPv6 Anycast Address Allocations RFC2373 (?)
Internet Protocol version 6 (IPv6) Global Unicast Allocations
IANA IPv6 Special Purpose Address Registry RFC4773 IETF Consensus
IPv6 Global Unicast Allocations RFC2928 Contact IANA for information.
Internet Protocol version 6 (IPv6) Multicast Address Allocations
Address Allocations RFC3307 Expert Review (Expert-Marshall Eubanks)
Internet Protocol version 6 (IPv6) Parameters
IPv6 Parameters RFC (?) (?)
Internet Protocol version 6 (IPv6) Router Alert Option Values
IPv6 Router Alert Option Values RFC2711 IETF consensus (section 5)
Internet Protocol version 6 (IPv6) Sub-Top Level Aggregation (TLA) Identifier Assignments
IPv6 Sub-TLA Assignments (DEPRECATED) RFC2450 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
ISAKMP Identifiers RFC (?) (?)
Signature Encoding Algorithm Values RFC4359 Standards Action
Internet Storage Name Service (iSNS)
Block Storage Protocols RFC4171 Expert Review (by IPS WG Chair or designated expert - David Black)
Standard iSNS Attributes RFC4171 IETF Consensus
Internet/Xerox Network System (XNS) Protocol Mappings
Internet/XNS Protocol Mappings RFC1764 (?)
Intrusion Detection Exchange Protocol (IDXP)
Options RFC4767 Expert Review (Expert - Ben Feinstein)
Intrusion Detection Message Exchange Format (IDMEF) Parameters
Attribute Values RFC4765 Specification Required by RFC
Class Names and Attribute Names RFC4765 IETF Consensus
IP Flow Information Export (IPFIX)
IPFIX Information Elements RFC5102 Expert Review (Primary expert - Nevil Brownlee and Secondary expert - Juergen Quittek)
IPFIX MPLS label type RFC5102 Expert Review (Primary expert - Nevil Brownlee and Secondary expert - Juergen Quittek)
IPFIX Set IDs RFC5101 Standards Action
IPFIX Version Numbers RFC5101 Standards Action
IPS Protocol
Protocol Number field RFC3643 Standards Track RFCs approved by the IESG
IPSec
asn1-modules RFC4301 Specification Required
IPsec Resource Record Parameters
Algorithm Type Field RFC4025 IETF Consensus
Gateway Type Field RFC4025 Standards Action
IPv6 Multicast Permanent Group Identifiers
Group Identifier Values RFC3307 Expert Review (Expert - Marshall Eubanks)
Robust Header Compression (ROHC) Configuration Option Suboption Identifier Values (?) (?)
IS-IS
Bandwidth Constraints Model Identifiers RFC4124 0-239: Specification Required. 240-255: Private Use.
IS-IS Multi-Topology ID Values RFC-ietf-isis-wg-multi-topology-12.txt 0-3995: Expert Review. 3996-4095: Private Use.
TLV Codepoints RFC3563 Expert review. (section 3.3.1) (Expert-ISIS WG chairs)
iSCSI
iSCSI authenication methods registry RFC3720  
iSCSI digests registry RFC3720  
iSCSI extended key registry RFC3720  
SRP_GROUP key values RFC3720  
K
Related Registry Defining RFC Registration/Assignment Procedures
Kerberized Internet Negotiation of Keys (KINK)
Error Codes RFC4430 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 RFC4430 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 RFC4430 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 RFC3961 See: RFC3961 (expert-Ken Raeburn)
Encryption Type Numbers RFC3961 See: RFC3961 (expert-Ken Raeburn)
Kerberos TCP Extensions RFC5021 IESG Approval or Standards Action
L
Related Registry Defining RFC Registration/Assignment Procedures
Label Distribution Protocol (LDP) Name Spaces
Experiment ID Name Space RFC3036 0x00000000 - 0xefffffff: FCFS 0xf0000000 - 0xffffffff: Private use (section 4.5)
Forwarding Equivalence Class (FEC) Type Name Space RFC3036 0-127: IETF consensus 128-191: FCFS 192-255: Private use (section 4.3)
Message Type Name Space RFC3036 0x0000-0x3DFF: IETF consensus 0x3E00-0x3EFF: Vendor private use 0x3F00-0x3EFF: Experimental use (section 4.1)
Status Code Name Space RFC3036 0x00000000-0x1FFFFFFF: IETF consensus 0x20000000 - 0x3EFFFFFF: FCFS 0x3F000000 - 0x3FFFFFFF: Private Use (section 4.4)
Table, Length, and Value (TLV) Type Name Space RFC3036 0x0000-0x3DFF: IETF consensus 0x3E00-0x3EFFF: Vendor private use 0x3F00-0x3EFF: Experimental use (section 4.1)
Language Tags
Language Subtag Registry RFC4646 Expert Review (Experts - Michael Everson and Doug Ewell)
Language Subtag Registry - Registration Templates RFC4646 These are the Registration Templates only.
Language Tag Extensions Registry RFC4646 IESG Approval
Language Tags - OBSOLETE RFC4646 No further registrations in this registry.
Language Tags Directory - OBSOLETE RFC4646 No further registrations in this registry.
Layer Two Tunneling Protocol (L2TP) Parameters
ATM Alarm Status AVP (Attribute Type 88) Values RFC4454 Circuit Status Reason values for the SLI message - Expert Review General ATM Alarm failures - Expert Review
ATM-Specific Sublayer bits RFC4454 IETF Consensus
Control Message AVP's RFC3438 Expert review (section 2.1) Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
Message Type AVP Values RFC3438 Expert Review (section 2.2) Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
Remaining Values RFC3438 Expert review (section 2.4) Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
Result Code AVP Values RFC3438 Expert review (section 2.3)Carlos Pignataro (primary) Ron Da Silva (secondary) Ignacio Goyret (secondary)
Lightweight Directory Access Protocol (LDAP)
Attribute Description Options RFC4520 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 RFC4520 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 authzid prefixes RFC4520 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 RFC4520 Standards Action
LDAP ModifyRequest Operations RFC4520 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 RFC4520 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 RFC4520 First Come First Serve with Specification Required
LDAPMessage types RFC4520 Standards Action
Object Identifier Descriptors RFC4520 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-ietf-policy-core-schema-16.txt (tbd)
Protocol Mechanisms RFC4520 First Come First Serve
Result Code values RFC4520 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 Message Types RFC4204 21-127: Standards Action 128-247: Expert Review (Expert - Dimitri Papadimitriou)
LMP Object Class and Class Type (C-Type) RFC4204 See each individual type. (Expert - Dimitri Papadimitriou, if applicable)
M
Related Registry Defining RFC Registration/Assignment Procedures
Machine Names
Machine Names RFC (?) (?)
Mail Content Disposition Values and Parameters
Handling Parameter Values (?) (?)
Mail Content Disposition Parameter Values RFC (?) (?)
Mail Content Disposition Values RFC (?) (?)
Mail Content Dispositon Parameters RFC (?) (?)
Mail Parameters
Address Literal Tags RFC2821 Standards Action
Diagnostic Types RFC1891 (?)
Mail Address Types (?) (?)
Mail Encoding Header Field Keywords RFC1505 Specification Required
Mail Encryption Types (?) (?)
Mail Service Types RFC (?) (?)
Mail System Names (?) (?)
Mail Transmission Types RFC822 (?) (?)
MTA Name Types RFC1891 (?)
SMTP Service Extensions RFC1425 Standards Track 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 Feature Tags
features.global-tree RFC2506 Expert Review (Expert - Larry Masinter)
features.ietf-tree RFC2506 IETF Consensus
features.sip-tree RFC3840 IETF Consensus
features.uri-tree RFC2506 Unregistered (formed from uri)
Media Gateway Control Protocol (MGCP)
List of Extension Digit Map Letters RFC3435 Expert review (section C.1) (Expert-Brian Rosen)
LocalConnectionsOptions Sub-Registry RFC3435 Expert review (section C.3) (Expert-Brian Rosen)
MGCP Package Sub-Registry RFC3435 Expert review (section C.1) (Expert-Brian Rosen)
Megaco/H.248 Packages
Error Codes RFC5125 Expert review or IETF consensus (Expert-Tom PT Taylor)
Private Packages RFC5125 Expert review or IETF consensus (Expert-Tom PT Taylor)
Profile Names RFC5125 Expert review or IETF consensus (Expert-Tom PT Taylor)
Public Packages RFC5125 Expert review or IETF consensus (Expert-Tom PT Taylor)
Service Change Reasons RFC5125 Expert review or IETF consensus (Expert-Tom PT Taylor)
Message Disposition Notification (MDN) Parameters
MDN-Disposition-Modifier-Names RFC3798 (?)
MDN-Dispositon-Notification-Option Names RFC3798 (?)
MDN-Extension-Field-Names RFC3798 (?)
Message Header Fields
Permanent Message Header Fields RFC3864 Expert Review (Graham Klyne)
Provisional Message Header Fields RFC3864 Expert Review (Graham Klyne)
Message Session Relay Protocol (MSRP) Parameters
Header Fields RFC4975 RFC Publication
Methods RFC4975 RFC Publication
Status Codes RFC4975 RFC Publication
Message Tracking Query Protocol (MTQP)
Options RFC3887 Options whose names do not begin with "vnd.": Standards track or IESG approved experimental RFC Options with "vnd.": First Come First Serve (?)
Milnet Parameters
Milnet Parameters RFC (?) (?)
Mobile Internet Protocol (IP) Numbers
Code Values RFC3220 Expert review (Phil Roberts)
Code Values for Mobile IP Handoff Reply Messages RFC4881 IETF Consensus
Dynamic HA Extension subtypes RFC4433 IETF Consensus
FA Error Extension subtypes (value 45) RFC4636 Expert Review (Expert - Phil Roberts)
Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes RFC4881 IETF Consensus
User Datagram Protocol (UDP) Tunnel Reply Extension: Subtype RFC3519 Expert review. Also specification required. (section 8) (Expert-Phil Roberts)
User Datagram Protocol (UDP) Tunnel Request Extension: Subtype RFC3519 Expert review. Also specification required. (section 8) (Expert-Phil Roberts)
Mobile IPv6
Enumerating Algorithms RFC4285 IETF Consensus
Mobile Node Identifier Option Subtypes RFC4283 Standards Action
Mobility Header Types RFC3775 Standards Action or IESG Approval
Mobility Options RFC3775 Standards Action or IESG Approval
Status Codes RFC3775 Standards Action or IESG Approval
Subtype field of the MN-HA and MN-AAA authentication mobility options RFC4285 IETF Consensus
Multicast Address (IPv4)
Address Assignments/Allocations RFC3171 Expert review, IESG approval, or standards action process (Expert-Marshall Eubanks) http://www.iana.org/cgi-bin/multicast.pl
Multicast Address Dynamic Client Allocation Protocol (MADCAP) Parameters
MADCAP Error Codes RFC2730 IETF consensus (section 5)
MADCAP Feature Codes RFC2730 IETF consensus (section 5)
MADCAP Lease Identifier Types RFC2730 IETF consensus
MADCAP Message Types RFC2730 IETF consensus
MADCAP Options RFC2730 IETF consensus (section 5)
Multicast Address-Set Claim (MASC) Protocol Parameters
Message Types RFC2909 IETF consensus (section 15)
NOTIFICATION Message Error Codes and Subcodes RFC2909 IETF consensus (section 15)
OPEN Message Optional Parameter Types RFC2909 IETF consensus (section 15)
UPDATE Message Attribute Types RFC2909 IETF consensus (section 15)
UPDATE Message Optional Parameter Types RFC2909 IETF consensus (section 15)
Multicast Source Discovery Protocol (MSDP)
TLV Values RFC3618 8-200: IESG Approval or Standards Action Process (section 19.1) 201-255: Experimental use (section 19.2)
Multimedia Internet KEYing (MIKEY)
Key ID Types RFC4563 0-240 IETF Consensus, 241-255 Private Use
Payload Name Spaces RFC3830 0-240: IETF Consensus 241-255: Private Use Unless stated otherwise in Registry
Multiprotocol Label Switching Architecture (MPLS)
Identifiers RFC3033 IETF consensus
Label Switched Paths (LSPs) Parameters - Message Types RFC4379 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) Parameters - Reply Modes RFC4379 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) Parameters - Return Codes RFC4379 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) Parameters - TLVs RFC4379 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
MPLS Label Values RFC3032 IETF consensus
Multipurpose Internet Mail Extensions (MIME)
Access-Types RFC4289 Multiple registration procedures. See section 2 of RFC4289
Event code registry for audio/telephone-event RFC4733 Specification Required and Expert Review (Expert - Tom Taylor)
Media Type Parameters (?) (?)
Media Type Sub-Parameters RFC3640 (?)
Media Types RFC4288, RFC4855 Expert Review (Ned Freed)
Sub-parameter registry for application/mbox RFC4155 Specification Required
Sub-Parameter registry for audio/rtp-midi RFC4695 IETF Standards-Track Document or Specification Required (see individual sub-registries)
Sub-Parameter registry for mode=rtp-midi of audio/mpeg4-generic RFC4695 IETF Standards-Track Document or Specification Required (see individual sub-registries)
Sub-parameter registry for video/raw RFC4175 Specification Required (Values for the sampling and colorimetry parameters)
text/directory MIME Parameters RFC2425 Two week comment period, Expert review (Paul Hoffman)
text/directory MIME Profiles RFC2425 Two week comment period, expert review (Paul Hoffman)
text/directory MIME Types RFC2425 Two week comment period, Expert review (Paul Hoffman)
N
Related Registry Defining RFC Registration/Assignment Procedures
Namespace for IP Over IEEE 1394
Multicast Channel Allocation Protocol (MCAP) Parameters RFC2734 (?)
Values Registered for the Unit_SW_Version RFC2734 IANA allocation (section 10)
Network Configuration Protocol (NETCONF)
Capability URNs RFC4741 IETF Standards Action
Network File System version 4 (NFSv4) Named Attributes
Named Attributes RFC3530 Informational RFC (section 17.1)
Network News Transfer Protocol (NNTP)
Network News Transfer Protocol (NNTP) Parameters RFC3977 Labels beginning with X are reserved for private use All others: Standards Track RFC or an IESG-approved experimental protocol
Next Hop Resolution Protocol (NHRP) Packet Types
Extension Types RFC2332 Expert or area director review with documentation (section 9) (Expert-Jim Luciani)
Packet Types RFC2332 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
O
Related Registry Defining RFC Registration/Assignment Procedures
One Time Password Parameters
Algorithm Identifier RFC2289 (?)
Extension Set ID RFC2289 (?) (?)
Open Network Computing (ONC) Remote Procedure Call (RPC) Network Identifiers
r_netid RFC3530 Informational RFC (section17.2)
Open Shortest Path First (OSPF)
Authentication Codes RFC1583 (?) (?)
Bandwidth Constraints Model Identifiers RFC4124 0-239 Specification Required 240-255 Private Use
Link Local Signalling TLV Identifiers (LLS Types) RFC4813 IETF Consensus
LLS Type 1 Extended Options RFC4813 IETF Consensus
Opaque Link-State Advertisements (LSA) Option Types RFC2370 0-127: IETF consensus (section 7)
OSPF Multi-Topology Routing RFC-ietf-ospf-mt-08.txt 3-31: IETF consensus
Signature Algorithms RFC (?) (?)
Traffic Engineering TLVs RFC3630 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 Packet Type   0 Reserved, 1-127: Standards Action, 128-255 : Reserved
OSPF Router Information (RI) TLVs RFC4970 0 Reserved, 1-32767: Standards Action, 32768-32777: Experimentation, 32778-65535: Reserved
OSPF Router Informational Capability Bits RFC4970 Standards Action
OSPFv2 Grace LSA Top Level TLV RFC4940 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 RFC4940 Standards Action
OSPFv2 Router LSA Link Type RFC4940 0 Reserved, 5-127: Standards Action, 128-255: Reserved
OSPFv2 Router Properties RFC4940 Standards Action
Open Shortest Path First v3 (OSPFv3)
OSPFv3 LSA Function Codes RFC4970 0 Reserved, 1-255: Standards Action, 256-8175: Reserved, 8176-8183: Experimentation, 8184-8191: Vendor Private Use
OSPFv3 Options RFC4940 Standards Action
OSPFv3 Prefix Options RFC4940 Standards Action
OSPFv3 Router LSA Link Type RFC4940 0 Reserved, 1-127: Standards Action, 128-255: Reserved
Open Systems Interconnection (OSI) Network Service Access Point Addresses (NSAPA) Internet Code Point
OSI NSAPA Internet Code Point RFC-gray-1888bis-03.txt 2-9999 IETF Consensus
Operating System Names
Operating System Names RFC952 (?) (?)
Specific Parameters RFC3659 First Come First Serve
OPES Callout Protocol Core
OCP Features RFC4037 Designated expert review for standards-track registration
Optimized Link State Routing Protocol (OLSR)
Optimized Link State Routing Protocol (OLSR) RFC3626 5-127: Standards Action (section 22) 128-255: Reserved for Private/Local use. (section 22)
P
Related Registry Defining RFC Registration/Assignment Procedures
Per Hop Behavior Identification Codes
ID Codes RFC3140 Expert or area director review (section 4) (Experts - Primary: Brian Carpenter; Secondary: David Black)
PKIX Parameters
PKIX SRV Protocol Labels RFC4386 Specification Required
Point to Point Protocol (PPP) Numbers
Bridging MAC Types RFC (?) Expert review (Expert - Jim Carlson)
Internet Packet Exchange (IPX) Compression Protocol Values RFC (?) Expert review (Expert - Jim Carlson)
Internet Packet Exchange (IPX) Routing Protocol Options RFC (?) Expert review (Expert - Jim Carlson)
Internet Protocol (IP) Header Compression Configuration Option Suboption Types RFC (?) (?)
Internetwork Packet Exchange Control Protocol (IPXCP) Configuration Options RFC (?) Expert review (Expert - Jim Carlson)
IP Header Compression Configuration Option Suboption Types RFC3544 Standards Action Process (section 7)
IP-Compression-Protocol Types (?) (?)
IP-Compression-Protocol Types RFC1322 IETF Consensus
IPv6-Compression-Protocol RFC2023 IETF Consensus
Link Control Protocol (LCP) Callback Operation Fields RFC (?) (?)
Multilink Endpoint Discriminator Class RFC (?) (?)
NetBIOS Frames Control Protocol (NBFCP) Configuration Options RFC (?) Expert review (Expert - Jim Carlson)
PPP Apple Talk Control Protocol (ATCP) Configuration Option Types RFC (?) Expert review (Expert - Jim Carlson)
PPP Authentication Algorithms RFC (?) Expert review (Expert - Jim Carlson)
PPP Banyan Vines Control Protocol (BVCP) Configuration Option Types RFC (?) Expert review (Expert - Jim Carlson)
PPP Bridging Configuration Option Types RFC (?) Expert Review (Expert - Jim Carlson)
PPP Bridging Spanning Tree RFC (?) Expert review (Expert - Jim Carlson)
PPP Compression Control Protocol (CCP) Configuration Option Types RFC (?) Expert Review (Expert - Jim Carlson)
PPP Data Link Layer (DLL) Protocol Numbers (?) Expert review (Expert - Jim Carlson)
PPP Encryption Control Protocol (ECP) Configuration Option Types RFC (?) Expert review (Expert - Jim Carlson)
PPP Extensible Authentication Protocol (EAP) Request/Response Types RFC (?) Expert review (Expert - Jim Carlson)
PPP Internet Protocol Control Protocol (IPCP) Configuration Option Types RFC (?) Expert review (Expert - Jim Carlson)
PPP IPv6CP Configuration Options RFC (?) Expert review (Expert - Jim Carlson)
PPP Link Control Protocol (LCP) Configuration Option Types RFC (?) Expert review (Expert - Jim Carlson)
PPP Link Control Protocol (LCP) FCS Alternatives RFC (?) Expert review (Expert - Jim Carlson)
PPP Link Control Protocol (LCP), Compression Control Protocol (CCP), and Internet Protocol Control (IPCP) Codes RFC (?) Expert review (Expert - Jim Carlson)
PPP Numbers RFC (?) (?)
PPP OSI Network Layer Control Protocol (OSINLCP) Configuration Option Types RFC (?) Expert review (Expert - Jim Carlson)
PPP Vendor Specific Organizationally Unique Identifiers (OUI) Options RFC (?) Expert review (Expert - Jim Carlson)
Robust Header Compression (ROHC) Configuratin Option Suboption Identifier Values RFC3241 See http://www.iana.org/assignments/rohc-sub-ids
Serial Data Control Protocol (SDCP) Configuration Options RFC (?) Expert review (Expert - Jim Carlson)
Point-to-Point Over Ethernet (PPPoE)
PPPoE Active Discovery Code fields RFC4937 First Come First Serve
PPPoE TAG Values RFC4937 First Come First Serve
Port Numbers
System RFC2780 Specification Required
User RFC2780 IANA review
Post Office Protocol version 3 (POP3) Extension Mechanism
POP3 Capabilities RFC2449 Standards track or IESG approved experimental RFC (section 9)
POP3 Response Codes RFC2449 RFC specification required (section 9)
Preemption Namespace Registry
Preemption Namespaces RFC4411 Standards Track Document
Presence SRV Protocol
Label Registry RFC3861 Specification Required
Pretty Good Privacy (PGP)
Compression Algorithms RFC4880 IETF Consensus
Hash Algorithms RFC4880 IETF Consensus
Image Format Subpacket Types RFC4880 IETF Consensus
Implementation Features RFC4880 IETF Consensus
Key Flags Extensions RFC4880 IETF Consensus
Key Server Preference Extensions RFC4880 IETF Consensus
New Packet Versions RFC4880 IETF Consensus
PGP Packet Types/Tags RFC4880 IETF Consensus
PGP String-to-Key (S2K) RFC4880 IETF Consensus
PGP User Attribute Types RFC4880 IETF Consensus
Public Key Algorithms RFC4880 IETF Consensus
Reasons for Revocation Extensions RFC4880 IETF Consensus
Signature Notation Data Subpacket Types RFC4880 IESG Expert
Signature Subpacket Types RFC4880 IETF Consensus
Symetric Key Algorithms RFC4880 IETF Consensus
Printer Language Numbers
Printer Language Numbers RFC1759 (?) Working group approval
Pronet 80 Type Numbers
Pronet 80 Type Numbers Not IETF Not assigned by IANA
Protocol Independent Multicast (PIM)
Address Family Numbers RFC3973 0-127 Same meaning as Address Family Numbers 128-250 IESG Approval 251-255 Private Use
Hello Options RFC4601 FCFS (expire in 1 year) Permanenet assignments require a specification (specification required)
Protocol Names
Protocol Names RFC952 (?) (Also Service Names)
Protocol Numbers
Protocol Numbers RFC-arkko-RFC2780-proto-update-02.txt Standards Action or IESG Approval
Proxy Certificate Policy
Languages RFC3820 IETF Standards Action
Pseudo Wires Name Spaces (PWE3)
Attachment Group Identifier (AGI) Type Registry RFC4446 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 RFC4446 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)
MPLS Pseudowire Types Registry RFC4446 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)
Pseudo Wire Status Codes Registry RFC4446 5 through 31 - Expert Review (Experts - Stewart Bryant, Danny McPherson)
Pseudowire Associated Channel Types Registry RFC4385 IETF Consensus
Pseudowire Interface Parameters Sub-TLV Type Registry RFC4446 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)
Public Data Network Numbers
14.0.0.0-14.000.255.255 RFC1356 (?)
Publisher Identification Codes
Publisher ID Codes RFC2780 IANA does not assign
R
Related Registry Defining RFC Registration/Assignment Procedures
Radius Types
Radius Attribute Types RFC3575 IETF Consensus
Radius Attribute Values RFC3575 Standards Action
Radius Packet Type Codes RFC3575 IESG Approval
Vendor ID's RFC2865 Obtain a Private Enterprise Number
Real Time Streaming Protocol (RTSP)/1.0 Parameters
RTSP/1.0 Headers RFC2326 Standards Document, preferable an IETF RFC
RTSP/1.0 Methods RFC2326 IETF standard track document
RTSP/1.0 Option Tags RFC2326 Specification Required
RTSP/1.0 Status Codes RFC2326 IETF standards track document
Real-Time Transport Protocol (RTP) Parameters
FMT Values for RTPFB and PSFB Payload Types RFC-ietf-avt-rtcp-feedback-11.txt 2-30 Specification Required
Real-Time Transport Protocol (RTP) Payload Format media types RFC3551 Standards Action Process or expert approval (Expert-Steve Casner)
Real-Time Transport Protocol (RTP) Payload types (PT) for standard audio and video encodings RFC3551 Registry closed (section C)
Real-Time Transport Protocol (RTP) Profile Names RFC3550 Standards Action Process or expert approval (section D) (Expert-Steve Casner)
RTP RTCP Control Packet Types RFC3550 (?)
RTP SDES Item Types RFC3550 (?)
Realm Specific Internet Protocol (RSIP) Parameters
Address Types RFC3103 Specification required (section 12)
Flow Policy RFC3103 Specification required (section 12)
RSIP Error Codes RFC3103 Specification required (section 12)
RSIP Message Type Codes RFC3103 Specification required (section 12)
RSIP Methods RFC3103 Specification required (section 12)
RSIP Parameters RFC3103 Specification required (section 12)
Tunnel Types RFC3103 Specification required (section 12)
Vendor ID RFC3103 Specification required (section 12)
Registrar Identification Codes
Registrar ID Codes Not defined by an RFC ICANN Accredited Registrars
Reliable Mutlicast Transport (RMT) FEC Encoding IDs and FEC Instance IDs
Encoding IDs RFC5052 IETF Consensus
Instance IDs RFC5052 FCFS
Resource ReSerVation Protocol (RSVP) Parameters
Class Names, Class Numbers, and Class Types RFC3936 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 Values RFC3936 0-239 Standards Action 240-251 Expert Review 252-255 Vendor Private Use (Experts - Primary: Francois Le Faucheur, Secondary: Dimitri Papadimitriou)
Message Types RFC3936 0-239 Standards Action 240-255 Expert Review (Experts - Primary: Francois Le Faucheur, Secondary: Dimitri Papadimitriou)
Miscellaneous RFC (?) (?)
Virtual Destination Ports RFC2207 0 Illegal Value 1-10 Reserved (Contact Authors) 11-8191 Assigned by IANA 8192-65535 Dynamic
RObust Header Compression (ROHC)
Profile Identifiers RFC3095 0-127: Standards Track RFC 128-254: Other specs that meet this requirement such as an Informational RFC
Suboption Identifier Values RFC3241 Specification Required 0-127: IETF standards-track 128-254: Available for others
Route Distinguisher Types
Type Values RFC4364 High-order bit of 0 - First Come First Serve High-order bit of 1 - IETF Consensus
Routing Information Protocol (RIP) Types
Message Types RFC1723 (?)
RSVP TE Parameters
Attributes Flags RFC4420 IETF Consensus
Attributes TLV Space RFC4420 IETF Consensus
Session Attribute Object Flags RFC4859 IETF Consensus
RTP Control Protocol Extended Reports (RTCP XR)
Block Types RFC3611 Specification Required
SDP Parameters RFC3611 Specification Required
S
Related Registry Defining RFC Registration/Assignment Procedures
S-NAPTR Parameters
Application Protocol Tags RFC3958 Specification Required in form of a RFC
Application Service Tags RFC3958 Specification Required in form of a RFC
Secure Shell (SSH) Protocol Parameters
Authentication Method Names RFC4250 IETF Consensus
Channel Connection Failure Reason Codes and Descriptions RFC4250 0x00000005 through 0xFDFFFFFF - IETF CONSENSUS
Compression Algorithm Names RFC4250 IETF Consensus
Connection Protocol Assigned Names - Channel Request Names RFC4250 IETF Consensus
Connection Protocol Assigned Names - Channel Types RFC4250 IETF Consensus
Connection Protocol Assigned Names - Global Request Names RFC4250 IETF Consensus
Connection Protocol Assigned Names - Subsystem Names RFC4250 IETF Consensus
Disconnection Messages Reason Codes and Descriptions RFC4250 0x00000010 through 0xFDFFFFFF - IETF CONSENSUS
Encryption Algorithm Names RFC4250 IETF Consensus
Extended Channel Data Transfer data_type_code and Data RFC4250 IETF Consensus
Key Exchange Method Names RFC4250 IETF Consensus
MAC Algorithm Names RFC4250 IETF Consensus
Message Numbers RFC4250 STANDARDS ACTION
Pseudo-Terminal Encoded Terminal Modes RFC4250 IETF Consensus
Public Key Algorithm Names RFC4250 IETF Consensus
Publickey Subsystem Attributes RFC4819 IETF consensus
Publickey Subsystem Request Names RFC4819 IETF consensus
Publickey Subsystem Response Names RFC4819 IETF consensus
Publickey Subsystem Status Codes RFC4819 Standards Action
Service Names RFC4250 IETF Consensus
Signal Names RFC4250 IETF Consensus
SSH Public-Key File Header Tags RFC4716 IETF Consensus
Security Parameters Index
SPI Values (other ranges?) RFC1826 RFC required (section 3.2)
Server Cache Synchronization Protocol (SCSP) Parameters
Protocol ID's RFC2334 RFC, product of standards body, or expert review
Service Location Protocol Version 2 (SLPv2) Registrations
Cryptographic BSD Codes RFC2608 IETF Consensus
Error Numbers RFC2608 IETF Standards Action
SLPv2 Function ID's RFC2608 12-255: IETF consensus
Service Names
Service Names (?) (?)
Session Description Protocol (SDP) Parameters
ack and nack Attribute Values RFC-ietf-avt-rtcp-feedback-11.txt First Come First Served with a permanent, stable, and publically accessible document
Codec Control Messages RFC-ietf-avt-avpf-ccm-10.txt Specification Required
rtcp-fb Attribute Values RFC-ietf-avt-rtcp-feedback-11.txt First Come First Served with permanent, stable, and publically accessible document.
SDP Parameters addrtype RFC4566 RFC
SDP Parameters att-field (both session and media level) RFC4566 Specification Required
SDP Parameters att-field (media level only) RFC4566 Specification Required
SDP Parameters att-field (session level) RFC4566 Specification Required
SDP Parameters att-field (unknown level) RFC4566 Specification Required
SDP Parameters bwtype RFC4566 Standards-Track RFC
SDP Parameters content RFC4796 Specification Required
SDP Parameters enckey RFC4566 REGISTRY OBSOLETED - No further registrations accepted
SDP Parameters nettype RFC4566 RFC
SDP Parameters proto RFC4566 RFC (Standards-Track preferred)
SDP/RTSP key management protocol identifiers RFC4567 Specification Required
Semantics for the "group" SDP Attribute RFC3388 Standards track document
Session Initiation Protocol (SIP) Event Types Namespace
Event Packages RFC3427 Informational RFC approved by the IESG
Event Template Packages RFC3427 Standards Track RFC
Session Initiation Protocol (SIP) Parameters
Header Field Parameters and Parameter Values RFC3968 IETF Consensus (in the form of a RFC - No requirement that it be standards-track)
Identity-Info Algorithm Parameter Values RFC4474 Standards Track RFC
Identity-Info Parameters RFC4474 Standards Track RFC
Option Tags RFC3261, RFC3427 Publication of standards track (section 27.1)
Precondition Types used with SIP RFC3312 Publication of standards track RFC (section 15)
Reason Protocols RFC3326 Reason protocols MUST refer to either an ITU-T recommendation number, an IETF protocol name, or the recognized protocol identifier from another standardization organization (section 4)
Registry for the SIP SRV Resource Record Services Field RFC3263 Standards Track RFC
SIP/SIPS URI Parameters RFC3969 Specification Required
Session Initiation Protocol (SIP) Parameters
Header Fields RFC3261, RFC3427 RFC publication (section 27.3)
Methods and Response Codes RFC3261, RFC3427 RFC publication (section 27.4)
Security Mechanism Names RFC3329 IETF consensus (section 6)
SIP Table of Mappings From Service Field Values to Transport Protocols RFC3263 Publication of standards track RFC (section 9)
Warning Codes RFC3261, RFC3427 RFC publication (section 27.4)
Session Initiation Protocol (SIP) Privacy Header Values
Header Values RFC3323 RFC's approved by the SIP working group (section 7)
Sieve Extensions
Extensions RFC5228 Standards track or IESG approved experimental RFC
Notification Mechanisms RFC-ietf-sieve-notify-12.txt Vendor-controlled: First Come First Served. IETF-controlled: Specification Required.
Notification-Capability Parameters RFC-ietf-sieve-notify-12.txt Vendor-controlled: First Come First Served. IETF-controlled: Specification Required.
SIG
SIG (0) Algorithm Numbers RFC-ietf-dnsext-dnssec-2535typecode-chan (tbd)
Signaling Compression (SigComp)
Namespace RFC3320 Standards Track RFC approved by the IESG
Signaling User Adaptation Layer Assignments
Message Classes RFC3331, RFC4666 IETF consensus action (section 8.2)
Message Parameters RFC3331, RFC4666 IETF consensus action (section 8.2)
Message Types RFC3331, RFC4666 IETF consensus action (section 8.2)
Simple Authentication and Security Layer (SASL) Mechanisms
SASL Mechanisms RFC4422 First Come First Serve for Mechanisms Expert Review with Mailing List for Family Name Registrations (Expert - Simon Josefsson)
Simple Gateway Monitoring Protocol (SGMP) Vendor Specific Codes
SGMP Vendor Specific Codes (Obsolete) RFC1028 (?) No further registrations
Simple Mail Transfer Protocol (SMTP) Service Extensions
Keywords RFC1869 Standards track RFC or a document defining an IESG approved experimental protocol
Simple Network Management Protocol (SNMP) Number Spaces
Message Processing Models RFC3411 Standards track document (section 6.2)
Security Models RFC3411 Standards track document (section 6.1)
snmpAuthProtocols RFC3411 Standards Track document
SnmpEngineID Formats RFC3411 Standards track document (section 6.3)
snmpPrivProtocols RFC3411 Standards Track document
Snoop
Datalink Types RFC3827 FCFS (26 and above) (10-15 and 19-25 Reserved)
SOCKS Methods
SOCKS Method Values RFC1928 (?) (?)
Special Peoples Number Registry (SPNR)
Special Peoples Number Registry (SPNR) n/a Not an IETF Registry. Contact IANA.
Stream Control Transmission Protocol (SCTP) Parameters
Adaptation Code Points RFC5061 IETF Consensus
Cause Codes RFC2960 Specification required action (section 13.3)
Chunk Parameter Types RFC2960 IETF consensus action (section 13.2)
Chunk Types RFC2960 IETF consensus action (section 13.1)
HMAC IDENTIFIERS RFC4895 IETF Consensus
SCTP Payload Protocol Identifiers RFC2960 FCFS (section 13.4)
Stringprep Profiles
Profile Names RFC3454 IETF consensus (section 10)
Structure of Management Information (SMI) Numbers
Experimental Numbers (?) (?)
ifType definitions (?) (?)
Message Processing Models RFC3411 Please look under Simple Network Management Protocol (SNMP) Number Spaces
mib-2 Numbers RFC1213, RFC2578 RFC Required
Misc Parameters (?) (?)
mplsStdMIB (SIC) RFC4802 Standard Action section 11.2.1
Security Models RFC3411 Please look under Simple Network Management Protocol (SNMP) Number Spaces
SMI Security for Mechanism msec Codes (?) IETF Consensus
SMI Security for Mechanism msec content-types RFC4534 IETF Consensus
SMI Security for Mechanism msec data-policies RFC4534 IETF Consensus
SMI Security for Mechanism msec distributed-operations-methods RFC4534 IETF Consensus
SMI Security for Mechanism msec module-identifers RFC4534 IETF Consensus
SMI Security for Mechanism msec protocol-identifiers RFC4534 IETF Consensus
SMI Security for Mechanism msec rekey-methods RFC4534 IETF Consensus
SMI Security for Mechanism msec rekey-reliability-methods RFC4534 IETF Consensus
SMI Security for Mechanism msec security-suites RFC4534 IETF Consensus
spdActions RFC4807 Specification Required and Expert Review (Expert - Wes Hardaker)
Transmission Numbers RFC1213 Specification Required
Structured Data Exchange Format (SDXF) Parameters
Compression Methods for SDXF RFC3072 RFC or equivalent (section 12.3)
Encryption Methods for SDXF RFC3072 RFC or equivalent (section 12.3)
Subsequent Address Family Identifier (SAFI) Parameters
SAFI Values RFC4760 4 - 63: Standards Action or Early Allocation policy; 64 - 127: First Come First Served; 128 - 240: Some recognized assignments (see registry), others Reserved; 241 - 254: Private Use (not to be assigned)
SUN Remote Procedure Call (RPC) Numbers
SUN RPC Numbers RFC1057 (?) IANA does not assign. Republication of values only.
SVRLOC Extensions
Service Extensions RFC2608 Expert review (Expert-Erik Guttman)
SVRLOC Templates
Service Templates RFC2609 Expert review (section 5) (Expert-Erik Guttman)
Syslog Parameters
Syslog Message Severities RFC3164 FCFS (?)
Sysolg Message Facilities RFC3164 FCFS (?)
T
Related Registry Defining RFC Registration/Assignment Procedures
Telephony Routing over IP (TRIP) Parameters
TRIP Address Families RFC3219 Expert review (section 13.3) (Expert - Jonathan Rosenberg)
TRIP Application Protocols RFC3219 Expert review (section 13.4) (Expert - Jonathan Rosenberg)
TRIP Attributes RFC3219 RFC or equivalent (section 13.2)
TRIP Capabilities RFC3219 RFC or equivalent (section 13.1)
TRIP IP Telephony Administrative Domain (ITAD) Numbers RFC3219 FCFS (section 13.5)
Telnet Options
Options RFC855 IETF Consensus
Sub-options RFC855 IETF Consensus
Terminal Type Names
Terminal Type Names RFC930 (?) or RFC1091 (?) (?)
Timed Efficient Stream Loss-tolerant Authentication (TESLA) Parameters
TESLA-MAC Values RFC4442 Expert Review by the MSEC working group or its designated successor
TESLA-PRF Values RFC4442 Expert Review by the MSEC working group or its designated successor
Transfer Encodings
Transfer Encoding Names RFC4289 Standards track RFC (section 3.3)
Transmission Control Protocol (TCP) Header Flags
Header Flags RFC2780, RFC3168 Standards action process
Transmission Control Protocol (TCP) Parameters
TCP Alternate Checksum Numbers RFC (?) (?)
TCP Option Numbers RFC2780 IESG Approval or Standards Action
Transport Layer Security (TLS)
Alert Registry RFC4346 Standards Action
Cipher Suite Registry RFC4346 First byte in range 0-191 (decimal) Standards Action, First byte in range 192-254 (decimal) Specification Required, First byte in range 255 (decimal) Private Use
ClientCertificateType Identifiers Registry RFC4346 0-63 Standards Action 64-223 Specification Required 224-255 Private Use
Compression Method Identifiers RFC3749 0-63: Standards Action 64-223: Specification Required 224-255: Private Use
ContentType Registry RFC4346 Standards Action
EC Curve Type Registry RFC-ietf-tls-ecc-12.txt IETF Consensus
EC Named Curve Registry RFC-ietf-tls-ecc-12.txt IETF Consensus
EC Point Format Registry RFC-ietf-tls-ecc-12.txt IETF Consensus
Extensions RFC4366 IETF Consensus
HandshakeType Registry RFC4346 Standards Action
TLS Supplemental Data Formats (SupplementalDataType) RFC-santesson-tls-supp-02.txt 0-16385 Standards Action, 16386-65279 IETF Consensus, 65280-65535 Private Use
TLS UserMappingType Values RFC-santesson-tls-ume-07.txt 0-63 Standards Action, 64-223 Specification Required, 224-255 Private Use
TSIG Algorithm Names
Algorithm Names RFC2845 IETF consensus policy (section 7)
U
Related Registry Defining RFC Registration/Assignment Procedures
Undirectional Lightweight Encapsulation (ULE)
Next-Header Registry RFC4326 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
URI Schemes RFC4395 Expert Review (Graham Klyne)
Uniform Resource Names (URN)
Formal Namespaces RFC3406 IETF consensus action
Informal Namespace Templates RFC3406  
Informal Namespaces RFC3406 Two week review period on urn-nid discussion list (expert-Leslie Daigle), then FCFS
Service URN Labels RFC5031 Standards Action
V
Related Registry Defining RFC Registration/Assignment Procedures
VCDIFF Secondary Compressor ID Values
VCDIFF Secondary Compressor ID Values RFC3284 RFC or peer-reviewed permanent and readily available reference. Subject to the above, name assignments are FCFS. (section 15)
Version Numbers
Version Numbers RFC2780 (section 3) (?) IETF standards action
Version Symbols Used Within the Integrated Services User Port (ISUP) and QSIG
Application/ISUP Symbols RFC3204 Expert review (section 6) (experts - Primary: Jon Peterson, Secondary: Mark Watson)
Application/QSIG Symbols RFC3204 Expert review (section 6) (experts - Primary: Jon Peterson, Secondary: Mark Watson)
W
Related Registry Defining RFC Registration/Assignment Procedures
WAVE and AVI Codec Registries
WAVE and AVI Codes Registries (Historic Registry) RFC2361 IANA does not assign. Republication of values. (section 3)
X
Related Registry Defining RFC Registration/Assignment Procedures
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 RFC3688 First Come First Serve, with Specification Required
XML-XCAP Application Unique IDs [RFC-ietf-simple-xcap-11.txt] Standards Track RFC

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