RFC indexes
Every RFC can be grouped by its formal status, the year or decade it was published, the stream that produced it, the IETF area it belongs to, or the official STD/BCP/FYI subseries it is part of. Documents that were revised repeatedly also form a standards lineage, listed below.
Standards lineages
Specifications revised three or more times, from the first version to the one in force today.
- Lightweight Directory Access Protocol (LDAP) Schema Definitions for X.509 Certificates35
- Retirement of the "Internet Official Protocol Standards" Summary Document33
- Assigned Numbers: RFC 1700 is Replaced by an On-line Database25
- HTTP/1.121
- Transmission Control Protocol (TCP)18
- The Transport Layer Security (TLS) Protocol Version 1.315
- TCP Extensions for High Performance13
- Media Type Specifications and Registration Procedures13
- Protocol Modifications for the DNS Security Extensions13
- Summary of Smallberg surveys13
- IAB, IESG, IETF Trust, and IETF LLC Selection, Confirmation, and Recall Process: Operation of the IETF Nominating and Recall Committees11
- The IPv6-Specific MIB Modules Are Obsolete11
- Cryptographic Algorithm Implementation Requirements and Usage Guidance for Encapsulating Security Payload (ESP) and Authentication Header (AH)10
- Simple Mail Transfer Protocol10
- Dynamic Host Configuration Protocol for IPv6 (DHCPv6)9
- Network Time Protocol Version 4: Protocol and Algorithms Specification9
- ARPA Network Mailing Lists9
- Certificate Management over CMS (CMC): Compliance Requirements8
- Stream Control Transmission Protocol8
- Internet Printing Protocol/1.1: Model and Semantics8
- Official Internet protocols8
- File Transfer Protocol8
- Network Host Status8
- Network host status8
- RFC Editor Model (Version 3)7
- Retiring the Tao of the IETF7
- Internet Key Exchange Protocol Version 2 (IKEv2)7
- SIP-Specific Event Notification7
- MIXER (Mime Internet X.400 Enhanced Relay): Mapping between X.400 and RFC 822/MIME7
- The Point-to-Point Protocol (PPP)7
- Proffered Official Initial Connection Protocol7
- Internet X.509 Public Key Infrastructure -- HTTP Transfer for the Certificate Management Protocol (CMP)6
- OpenPGP6
- Session Description Protocol (SDP) Offer/Answer Procedures for Interactive Connectivity Establishment (ICE)6
- Message Header Field for Indicating Message Authentication Status6
- Special-Purpose IP Address Registries6
- Cryptographic Message Syntax (CMS)6
- Tags for Identifying Languages6
- Toll Quality Voice - 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) MIME Sub-type Registration6
- Dynamic Delegation Discovery System (DDDS) Part Four: The Uniform Resource Identifiers (URI)6
- The 'text/html' Media Type6
- DHCP Options and BOOTP Vendor Extensions6
- Domain-Based Message Authentication, Reporting, and Conformance (DMARC) Failure Reporting5
- Internet Message Access Protocol (IMAP) - Version 4rev25
- Detecting Multiprotocol Label Switched (MPLS) Data-Plane Failures5
- Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised)5
- RFC Style Guide5
- Internet Small Computer System Interface (iSCSI) Protocol (Consolidated)5
- Formally Deprecating Some IPv4 Options5
- Netnews Architecture and Protocols5
- Internet Message Format5
- Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile5
- Reclassification of RFC 3525 to Historic5
- Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs)5
- Definitions of Managed Objects for the DS1, J1, E1, DS2, and E2 Interface Types5
- OSPF Version 2 Management Information Base5
- Applicability Statement for Reclassification of RFC 1643 to Historic Status5
- Coexistence between Version 1, Version 2, and Version 3 of the Internet-standard Network Management Framework5
- FYI on Questions and Answers - Answers to Commonly Asked "New Internet User" Questions5
- OSPF Version 25
- Post Office Protocol - Version 35
- NADF Standing Documents: A Brief Overview5
- Internet numbers5
- Domain names - implementation and specification5
- Request For Comments reference guide5
- Network Host Status5
- Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv64
- Locator/ID Separation Protocol (LISP) Control Plane4
- Deprecating Infrastructure "int" Domains4
- SDP: Session Description Protocol4
- Structure of the IETF Administrative Support Activity, Version 2.04
- Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message Specification4
- Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Certificate Handling4
- The JavaScript Object Notation (JSON) Data Interchange Format4
- Intellectual Property Rights in IETF Technology4
- Uniform Resource Names (URNs)4
- PKCS #1: RSA Cryptography Specifications Version 2.24
- Guidelines and Registration Procedures for URI Schemes4
- The Internet Numbers Registry System4
- Entity MIB (Version 4)4
- Domain Name System (DNS) IANA Considerations4
- Overview and Framework for Internationalized Email4
- DomainKeys Identified Mail (DKIM) Signatures4
- vCard Format Specification4
- IANA Registration of Enumservices: Guide, Template, and IANA Considerations4
- IP Mobility Support for IPv4, Revised4
- Internationalized Domain Names in Applications (IDNA): Protocol4
- Basic Forward Error Correction (FEC) Schemes4
- Rights Contributors Provide to the IETF Trust4
- Negotiation for IPv6 Datagram Compression Using IPv6 Control Protocol4
- IP Version 6 Addressing Architecture4
- Definitions of Managed Objects for Bridges4
- Uniform Resource Identifier (URI): Generic Syntax4
- Definitions of Managed Objects for the DS3/E3 Interface Type4
- Definitions of Managed Objects for the Ethernet-like Interface Types4
- Point-to-Point Protocol (PPP) Bridging Control Protocol (BCP)4
- View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)4
- User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)4
- Simple Network Management Protocol (SNMP) Applications4
- Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)4
- An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks4
- The Interfaces Group MIB4
- The Internet Standards Process -- Revision 34
- Requirements for IP Version 4 Routers4
- Application of the Border Gateway Protocol in the Internet4
- Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures4
- The Finger User Information Protocol4
- Host extensions for IP multicasting4
- NETRJS Protocol4
- IETF Community Moderation3
- Common YANG Data Types3
- Guidelines for Authors and Reviewers of Documents Containing YANG Data Models3
- DNSSEC Cryptographic Algorithm Recommendation Update Process3
- Group Key Management Using the Internet Key Exchange Protocol Version 2 (IKEv2)3
- IMAP Support for UTF-83
- Distribution of Link-State and Traffic Engineering Information Using BGP3
- IANA Considerations and IETF Protocol and Documentation Usage for IEEE 802 Parameters3
- DNS Terminology3
- PIM Message Type Space Extension and Reserved Bits3
- Internet X.509 Public Key Infrastructure: Logotypes in X.509 Certificates3
- Nominating Committee Eligibility3
- Additional XML Security Uniform Resource Identifiers (URIs)3
- The Datagram Transport Layer Security (DTLS) Protocol Version 1.33
- HTTP/23
- CBOR Object Signing and Encryption (COSE): Initial Algorithms3
- The BGP Tunnel Encapsulation Attribute3
- Deprecating TLS 1.0 and TLS 1.13
- Temporary Address Extensions for Stateless Address Autoconfiguration in IPv63
- The Babel Routing Protocol3
- Dissemination of Flow Specification Rules3
- Secret Key Transaction Authentication for DNS (TSIG)3
- Restart Signaling for IS-IS3
- Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)3
- Resource Public Key Infrastructure (RPKI) Trust Anchor Locator3
- IPv6 Node Requirements3
- Session Traversal Utilities for NAT (STUN)3
- Generic Security Service API Version 2: Java Bindings Update3
- Preparation, Enforcement, and Comparison of Internationalized Strings Representing Usernames and Passwords3
- PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols3
- Uniform Resource Name (URN) Namespace Registration Transition3
- Internet Protocol, Version 6 (IPv6) Specification3
- Guidelines for Writing an IANA Considerations Section in RFCs3
- IPv6 Router Advertisement Options for DNS Configuration3
- Message Disposition Notification3
- Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)3
- The "xml2rfc" Version 3 Vocabulary3
- The Incident Object Description Exchange Format Version 23
- IP/ICMP Translation Algorithm3
- DNS Root Name Service Protocol and Deployment Requirements3
- The Network Access Identifier3
- Network File System (NFS) Version 4 Protocol3
- Deprecating the Anycast Prefix for 6to4 Relay Routers3
- XML Media Types3
- IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC)3
- X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP3
- Extension Mechanisms for DNS (EDNS(0))3
- DNSSEC Operational Practices, Version 23
- Internet Engineering Task Force and International Telecommunication Union - Telecommunication Standardization Sector Collaboration Guidelines3
- Diameter Base Protocol3
- Deprecate DES, RC4-HMAC-EXP, and Other Weak Cryptographic Algorithms in Kerberos3
- The NewReno Modification to TCP's Fast Recovery Algorithm3
- Dual-Stack Hosts Using "Bump-in-the-Host" (BIH)3
- The Multipart/Report Media Type for the Reporting of Mail System Administrative Messages3
- Message Submission for Mail3
- IANA Rules for MIKEY (Multimedia Internet KEYing)3
- HTTP State Management Mechanism3
- SMTP Service Extension for 8-bit MIME Transport3
- MD4 to Historic Status3
- IANA Guidelines for IPv4 Multicast Address Assignments3
- Extensible Provisioning Protocol (EPP) Transport over TCP3
- Extensible Provisioning Protocol (EPP) Contact Mapping3
- Extensible Provisioning Protocol (EPP) Host Mapping3
- Extensible Provisioning Protocol (EPP) Domain Name Mapping3
- Extensible Provisioning Protocol (EPP)3
- TCP Congestion Control3
- Mobile IPv6 Fast Handovers3
- Multicast Group Membership Discovery MIB3
- Capabilities Advertisement with BGP-43
- Sieve Email Filtering: Reject and Extended Reject Extensions3
- Augmented BNF for Syntax Specifications: ABNF3
- RTP Payload Format for Generic Forward Error Correction3
- Autonomous System Confederations for BGP3
- IPv6 Stateless Address Autoconfiguration3
- Neighbor Discovery for IP version 6 (IPv6)3
- Media Type Registration of Payload Formats in the RTP Profile for Audio and Video Conferences3
- Multiprotocol Extensions for BGP-43
- The Kerberos V5 ("GSSAPI") Simple Authentication and Security Layer (SASL) Mechanism3
- Definition of Events for Modem, Fax, and Text Telephony Signals3
- Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan3
- BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP)3
- Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification3
- Transmission of IPv6, IPv4, and Address Resolution Protocol (ARP) Packets over Fibre Channel3
- Security Architecture for the Internet Protocol3
- IP Forwarding Table MIB3
- Definitions of Managed Objects for BGP-43
- A Border Gateway Protocol 4 (BGP-4)3
- The gopher URI Scheme3
- Basic Transition Mechanisms for IPv6 Hosts and Routers3
- Textual Conventions for Internet Network Addresses3
- WHOIS Protocol Specification3
- 6bone (IPv6 Testing Address Allocation) Phaseout3
- UTF-8, a transformation format of ISO 106463
- DNS Extensions to Support IP Version 63
- Definitions of Managed Objects for the Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Interface Type3
- IPv6 Global Unicast Address Format3
- Basic Socket Interface Extensions for IPv63
- Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)3
- Transport Mappings for the Simple Network Management Protocol (SNMP)3
- Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP)3
- Definitions of Managed Objects for Frame Relay Service3
- Telnet Authentication Option3
- SMTP Service Extension for Command Pipelining3
- RADIUS Accounting3
- Remote Authentication Dial In User Service (RADIUS)3
- Charter of the Internet Architecture Board (IAB)3
- Remote Network Monitoring Management Information Base3
- Mail Monitoring MIB3
- Network Services Monitoring MIB3
- Generic Security Service Application Program Interface Version 2, Update 13
- Conformance Statements for SMIv23
- Textual Conventions for SMIv23
- Structure of Management Information Version 2 (SMIv2)3
- Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers3
- RIP Version 23
- Multiprotocol Interconnect over Frame Relay3
- The MIME Multipart/Related Content-type3
- Classical IP and ARP over ATM3
- U.S. Government Internet Domain Names3
- Dynamic Host Configuration Protocol3
- X.500 Implementations Catalog-963
- Definitions of Managed Objects for IEEE 802.3 Repeater Devices using SMIv23
- Address Allocation for Private Internets3
- The text/enriched MIME Content-type3
- SMTP Service Extension for Message Size Declaration3
- Simple Network Paging Protocol - Version 3 -Two-Way Enhanced3
- IEEE 802.5 MIB using SMIv23
- DNS NSAP Resource Records3
- Novell IPX Over Various WAN Media (IPXWAN)3
- An Echo Function for CLNP (ISO 8473)3
- SNMP over OSI3
- Identification Protocol3
- Border Gateway Protocol 3 (BGP-3)3
- Interactive Mail Access Protocol: Version 33
- Simple Network Management Protocol (SNMP)3
- Telnet terminal-type option3
- PCMAIL: A distributed mail system for personal computers3
- DoD Internet host table specification3
- ARPANET 1822L Host Access Protocol3
- IMP/TIP memory retrofit schedule (rev 2)3
- Status of the Release of the New IMP System (2600)3
- Revision of the Mail Box Protocol3
- M.I.T3
Status
The formal maturity of each RFC.
Subseries
Official STD, BCP and FYI numbers.
- BCP 31
- BCP 41
- BCP 51
- BCP 63
- BCP 71
- BCP 81
- BCP 98
- BCP 102
- BCP 111
- BCP 133
- BCP 142
- BCP 151
- BCP 161
- BCP 171
- BCP 181
- BCP 191
- BCP 201
- BCP 211
- BCP 221
- BCP 231
- BCP 241
- BCP 253
- BCP 261
- BCP 271
- BCP 281
- BCP 291
- BCP 301
- BCP 311
- BCP 321
- BCP 331
- BCP 341
- BCP 351
- BCP 361
- BCP 372
- BCP 381
- BCP 392
- BCP 401
- BCP 412
- BCP 421
- BCP 431
- BCP 441
- BCP 451
- BCP 461
- BCP 472
- BCP 481
- BCP 491
- BCP 501
- BCP 511
- BCP 521
- BCP 531
- BCP 541
- BCP 551
- BCP 561
- BCP 571
- BCP 581
- BCP 591
- BCP 601
- BCP 611
- BCP 621
- BCP 631
- BCP 641
- BCP 652
- BCP 672
- BCP 681
- BCP 691
- BCP 701
- BCP 711
- BCP 722
- BCP 731
- BCP 741
- BCP 751
- BCP 761
- BCP 771
- BCP 781
- BCP 791
- BCP 801
- BCP 811
- BCP 821
- BCP 842
- BCP 851
- BCP 861
- BCP 871
- BCP 881
- BCP 892
- BCP 901
- BCP 912
- BCP 921
- BCP 931
- BCP 951
- BCP 961
- BCP 973
- BCP 981
- BCP 991
- BCP 1001
- BCP 1013
- BCP 1021
- BCP 1031
- BCP 1041
- BCP 1051
- BCP 1061
- BCP 1071
- BCP 1081
- BCP 1091
- BCP 1101
- BCP 1112
- BCP 1121
- BCP 1141
- BCP 1161
- BCP 1171
- BCP 1181
- BCP 1191
- BCP 1201
- BCP 1211
- BCP 1221
- BCP 1231
- BCP 1241
- BCP 1251
- BCP 1261
- BCP 1273
- BCP 1281
- BCP 1291
- BCP 1301
- BCP 1311
- BCP 1321
- BCP 1331
- BCP 1341
- BCP 1351
- BCP 1361
- BCP 1371
- BCP 1381
- BCP 1391
- BCP 1401
- BCP 1411
- BCP 1421
- BCP 1431
- BCP 1441
- BCP 1451
- BCP 1461
- BCP 1471
- BCP 1481
- BCP 1491
- BCP 1501
- BCP 1511
- BCP 1521
- BCP 1533
- BCP 1541
- BCP 1551
- BCP 1561
- BCP 1571
- BCP 1581
- BCP 1591
- BCP 1601
- BCP 1612
- BCP 1621
- BCP 1632
- BCP 1641
- BCP 1652
- BCP 1661
- BCP 1671
- BCP 1681
- BCP 1691
- BCP 1701
- BCP 1711
- BCP 1721
- BCP 1732
- BCP 1741
- BCP 1751
- BCP 1761
- BCP 1771
- BCP 1781
- BCP 1791
- BCP 1801
- BCP 1811
- BCP 1821
- BCP 1831
- BCP 1841
- BCP 1852
- BCP 1861
- BCP 1871
- BCP 1881
- BCP 1891
- BCP 1901
- BCP 1911
- BCP 1931
- BCP 1941
- BCP 1953
- BCP 1961
- BCP 1971
- BCP 1981
- BCP 1991
- BCP 2001
- BCP 2011
- BCP 2021
- BCP 2031
- BCP 2041
- BCP 2051
- BCP 2061
- BCP 2071
- BCP 2081
- BCP 2091
- BCP 2101
- BCP 2111
- BCP 2121
- BCP 2131
- BCP 2141
- BCP 2151
- BCP 2161
- BCP 2171
- BCP 2181
- BCP 2191
- BCP 2201
- BCP 2211
- BCP 2222
- BCP 2231
- BCP 2241
- BCP 2251
- BCP 2264
- BCP 2271
- BCP 2281
- BCP 2291
- BCP 2301
- BCP 2311
- BCP 2321
- BCP 2331
- BCP 2341
- BCP 2351
- BCP 2361
- BCP 2371
- BCP 2381
- BCP 2391
- BCP 2401
- BCP 2411
- BCP 2421
- BCP 2431
- BCP 2441
- BCP 2451
- BCP 2461
- BCP 2471
- FYI 21
- FYI 31
- FYI 41
- FYI 51
- FYI 61
- FYI 71
- FYI 81
- FYI 91
- FYI 101
- FYI 111
- FYI 121
- FYI 131
- FYI 141
- FYI 151
- FYI 161
- FYI 181
- FYI 191
- FYI 201
- FYI 211
- FYI 221
- FYI 231
- FYI 241
- FYI 251
- FYI 261
- FYI 271
- FYI 281
- FYI 291
- FYI 301
- FYI 311
- FYI 321
- FYI 331
- FYI 341
- FYI 351
- FYI 361
- FYI 371
- FYI 381
- STD 32
- STD 56
- STD 61
- STD 71
- STD 82
- STD 91
- STD 104
- STD 111
- STD 132
- STD 162
- STD 171
- STD 192
- STD 201
- STD 211
- STD 221
- STD 231
- STD 241
- STD 251
- STD 261
- STD 271
- STD 281
- STD 291
- STD 301
- STD 311
- STD 321
- STD 331
- STD 351
- STD 361
- STD 371
- STD 381
- STD 401
- STD 411
- STD 421
- STD 431
- STD 441
- STD 451
- STD 461
- STD 471
- STD 481
- STD 491
- STD 512
- STD 521
- STD 531
- STD 541
- STD 551
- STD 561
- STD 571
- STD 583
- STD 591
- STD 601
- STD 611
- STD 628
- STD 631
- STD 641
- STD 651
- STD 661
- STD 671
- STD 681
- STD 695
- STD 701
- STD 711
- STD 721
- STD 731
- STD 741
- STD 751
- STD 761
- STD 771
- STD 784
- STD 791
- STD 801
- STD 811
- STD 821
- STD 831
- STD 841
- STD 851
- STD 861
- STD 871
- STD 881
- STD 891
- STD 901
- STD 911
- STD 922
- STD 931
- STD 941
- STD 955
- STD 962
- STD 971
- STD 981
- STD 991
- STD 1001
- STD 1011
- STD 1021
- STD 1031
Year
RFCs published in a single year.
- 19681
- 196925
- 197058
- 1971182
- 1972134
- 1973162
- 197460
- 197524
- 197611
- 197720
- 19788
- 19797
- 198017
- 198129
- 198237
- 198349
- 198439
- 198541
- 198624
- 198742
- 198846
- 198952
- 199057
- 199195
- 199295
- 1993175
- 1994185
- 1995131
- 1996170
- 1997192
- 1998234
- 1999259
- 2000279
- 2001193
- 2002216
- 2003235
- 2004282
- 2005328
- 2006459
- 2007320
- 2008290
- 2009286
- 2010363
- 2011390
- 2012338
- 2013275
- 2014327
- 2015300
- 2016310
- 2017263
- 2018208
- 2019180
- 2020209
- 2021240
- 2022194
- 2023173
- 2024175
- 2025208
- 2026126
Decade
RFCs grouped by decade.
Stream
The organisational source of the document.
Area
IETF area responsible for the work.