| 1157 | Simple Network Management Protocol (SNMP)J.D. Case, M. Fedor, M.L. Schoffstall, J. Davin | Historic | May 1990 |
| 1185 | TCP Extension for High-Speed PathsV. Jacobson, R.T. Braden, L. Zhang · obsoleted by RFC 1323 | Experimental | October 1990 |
| 2104 | HMAC: Keyed-Hashing for Message AuthenticationH. Krawczyk, M. Bellare, R. Canetti | Informational | February 1997 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2131 | Dynamic Host Configuration ProtocolR. Droms | Draft Standard | March 1997 |
| 2324 | Hyper Text Coffee Pot Control Protocol (HTCPCP/1.0)L. Masinter | Informational | 1 April 1998 |
| 2328 | OSPF Version 2J. Moy | Internet Standard | April 1998 |
| 2526 | Reserved IPv6 Subnet Anycast AddressesD. Johnson, S. Deering | Proposed Standard | March 1999 |
| 2549 | IP over Avian Carriers with Quality of ServiceD. Waitzman | Informational | 1 April 1999 |
| 2822 | Internet Message FormatP. Resnick, Ed. · obsoleted by RFC 5322 | Proposed Standard | April 2001 |
| 2985 | PKCS #9: Selected Object Classes and Attribute Types Version 2.0M. Nystrom, B. Kaliski | Informational | November 2000 |
| 3253 | Versioning Extensions to WebDAV (Web Distributed Authoring and Versioning)G. Clemm, J. Amsden, T. Ellison, C. Kaler, J. Whitehead | Proposed Standard | March 2002 |
| 3325 | Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted NetworksC. Jennings, J. Peterson, M. Watson | Informational | December 2002 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 4035 | Protocol Modifications for the DNS Security ExtensionsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 4918 | HTTP Extensions for Web Distributed Authoring and Versioning (WebDAV)L. Dusseault, Ed. | Proposed Standard | June 2007 |
| 5323 | Web Distributed Authoring and Versioning (WebDAV) SEARCHJ. Reschke, Ed., S. Reddy, J. Davis, A. Babich | Proposed Standard | November 2008 |
| 6350 | vCard Format SpecificationS. Perreault | Proposed Standard | August 2011 |
| 6376 | DomainKeys Identified Mail (DKIM) SignaturesD. Crocker, Ed., T. Hansen, Ed., M. Kucherawy, Ed. | Internet Standard | September 2011 |
| 6797 | HTTP Strict Transport Security (HSTS)J. Hodges, C. Jackson, A. Barth | Proposed Standard | November 2012 |
| 6838 | Media Type Specifications and Registration ProceduresN. Freed, J. Klensin, T. Hansen | Best Current Practice | January 2013 |
| 7239 | Forwarded HTTP ExtensionA. Petersson, M. Nilsson | Proposed Standard | June 2014 |
| 7643 | System for Cross-domain Identity Management: Core SchemaP. Hunt, Ed., K. Grizzle, E. Wahlstroem, C. Mortimore | Proposed Standard | September 2015 |
| 7656 | A Taxonomy of Semantics and Mechanisms for Real-Time Transport Protocol (RTP) SourcesJ. Lennox, K. Gross, S. Nandakumar, G. Salgueiro, B. Burman, Ed. | Informational | November 2015 |
| 7748 | Elliptic Curves for SecurityA. Langley, M. Hamburg, S. Turner | Informational | January 2016 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8259 | The JavaScript Object Notation (JSON) Data Interchange FormatT. Bray, Ed. | Internet Standard | December 2017 |
| 8407 | Guidelines for Authors and Reviewers of Documents Containing YANG Data ModelsA. Bierman · obsoleted by RFC 9907 | Best Current Practice | October 2018 |
| 8463 | A New Cryptographic Signature Method for DomainKeys Identified Mail (DKIM)J. Levine | Proposed Standard | September 2018 |
| 8467 | Padding Policies for Extension Mechanisms for DNS (EDNS(0))A. Mayrhofer | Experimental | October 2018 |
| 8894 | Simple Certificate Enrolment ProtocolP. Gutmann | Informational | September 2020 |
| 9000 | QUIC: A UDP-Based Multiplexed and Secure TransportJ. Iyengar, Ed., M. Thomson, Ed. | Proposed Standard | May 2021 |
| 9001 | Using TLS to Secure QUICM. Thomson, Ed., S. Turner, Ed. | Proposed Standard | May 2021 |
| 9076 | DNS Privacy ConsiderationsT. Wicinski, Ed. | Informational | July 2021 |
| 9083 | JSON Responses for the Registration Data Access Protocol (RDAP)S. Hollenbeck, A. Newton | Internet Standard | June 2021 |
| 9110 | HTTP SemanticsR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9111 | HTTP CachingR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9132 | Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal Channel SpecificationM. Boucadair, Ed., J. Shallow, T. Reddy.K | Proposed Standard | September 2021 |
| 9420 | The Messaging Layer Security (MLS) ProtocolR. Barnes, B. Beurdouche, R. Robert, J. Millican, E. Omara, K. Cohn-Gordon | Proposed Standard | July 2023 |
| 9438 | CUBIC for Fast and Long-Distance NetworksL. Xu, S. Ha, I. Rhee, V. Goel, L. Eggert, Ed. | Proposed Standard | August 2023 |
| 9460 | Service Binding and Parameter Specification via the DNS (SVCB and HTTPS Resource Records)B. Schwartz, M. Bishop, E. Nygren | Proposed Standard | November 2023 |
| 9497 | Oblivious Pseudorandom Functions (OPRFs) Using Prime-Order GroupsA. Davidson, A. Faz-Hernandez, N. Sullivan, C. A. Wood | Informational | December 2023 |
| 9499 | DNS TerminologyP. Hoffman, K. Fujiwara | Best Current Practice | March 2024 |
| 9535 | JSONPath: Query Expressions for JSONS. Gössner, Ed., G. Normington, Ed., C. Bormann, Ed. | Proposed Standard | February 2024 |
| 9537 | Redacted Fields in the Registration Data Access Protocol (RDAP) ResponseJ. Gould, D. Smith, J. Kolker, R. Carney | Proposed Standard | March 2024 |
| 9543 | A Framework for Network Slices in Networks Built from IETF TechnologiesA. Farrel, Ed., J. Drake, Ed., R. Rokui, S. Homma, K. Makhijani, L. Contreras, J. Tantsura | Informational | March 2024 |
| 9557 | Date and Time on the Internet: Timestamps with Additional InformationU. Sharma, C. Bormann | Proposed Standard | April 2024 |
| 9651 | Structured Field Values for HTTPM. Nottingham, P-H. Kamp | Proposed Standard | September 2024 |
| 9656 | A YANG Data Model for Microwave TopologyS. Mansfield, Ed., J. Ahlberg, M. Ye, X. Li, D. Spreafico | Proposed Standard | September 2024 |