| 768 | User Datagram ProtocolJ. Postel | Internet Standard | August 1980 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell · obsoleted by RFC 4234 | Proposed Standard | November 1997 |
| 3168 | The Addition of Explicit Congestion Notification (ECN) to IPK. Ramakrishnan, S. Floyd, D. Black | Proposed Standard | September 2001 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 4443 | Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) SpecificationA. Conta, S. Deering, M. Gupta, Ed. | Internet Standard | March 2006 |
| 4787 | Network Address Translation (NAT) Behavioral Requirements for Unicast UDPF. Audet, Ed., C. Jennings | Best Current Practice | January 2007 |
| 6040 | Tunnelling of Explicit Congestion NotificationB. Briscoe | Proposed Standard | November 2010 |
| 6169 | Security Concerns with IP TunnelingS. Krishnan, D. Thaler, J. Hoagland | Informational | April 2011 |
| 6455 | The WebSocket ProtocolI. Fette, A. Melnikov | Proposed Standard | December 2011 |
| 6570 | URI TemplateJ. Gregorio, R. Fielding, M. Hadley, M. Nottingham, D. Orchard | Proposed Standard | March 2012 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 8085 | UDP Usage GuidelinesL. Eggert, G. Fairhurst, G. Shepherd | Best Current Practice | March 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8441 | Bootstrapping WebSockets with HTTP/2P. McManus | Proposed Standard | September 2018 |
| 8899 | Packetization Layer Path MTU Discovery for Datagram TransportsG. Fairhurst, T. Jones, M. Tüxen, I. Rüngeler, T. Völker | Proposed Standard | September 2020 |
| 9000 | QUIC: A UDP-Based Multiplexed and Secure TransportJ. Iyengar, Ed., M. Thomson, Ed. | Proposed Standard | May 2021 |
| 9110 | HTTP SemanticsR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9112 | HTTP/1.1R. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9113 | HTTP/2M. Thomson, Ed., C. Benfield, Ed. | Proposed Standard | June 2022 |
| 9114 | HTTP/3M. Bishop, Ed. | Proposed Standard | June 2022 |
| 9209 | The Proxy-Status HTTP Response Header FieldM. Nottingham, P. Sikora | Proposed Standard | June 2022 |
| 9220 | Bootstrapping WebSockets with HTTP/3R. Hamilton | Proposed Standard | June 2022 |
| 9221 | An Unreliable Datagram Extension to QUICT. Pauly, E. Kinnear, D. Schinazi | Proposed Standard | March 2022 |
| 9293 | Transmission Control Protocol (TCP)W. Eddy, Ed. | Internet Standard | August 2022 |
| 9297 | HTTP Datagrams and the Capsule ProtocolD. Schinazi, L. Pardue | Proposed Standard | August 2022 |