| 768 | User Datagram ProtocolJ. Postel | Internet Standard | August 1980 |
| 793 | Transmission Control ProtocolJ. Postel · obsoleted by RFC 9293 | Internet Standard | September 1981 |
| 2474 | Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 HeadersK. Nichols, S. Blake, F. Baker, D. Black | Proposed Standard | December 1998 |
| 2475 | An Architecture for Differentiated ServicesS. Blake, D. Black, M. Carlson, E. Davies, Z. Wang, W. Weiss | Informational | December 1998 |
| 2597 | Assured Forwarding PHB GroupJ. Heinanen, F. Baker, W. Weiss, J. Wroclawski | Proposed Standard | June 1999 |
| 2697 | A Single Rate Three Color MarkerJ. Heinanen, R. Guerin | Informational | September 1999 |
| 2698 | A Two Rate Three Color MarkerJ. Heinanen, R. Guerin | Informational | September 1999 |
| 2914 | Congestion Control PrinciplesS. Floyd | Best Current Practice | September 2000 |
| 3168 | The Addition of Explicit Congestion Notification (ECN) to IPK. Ramakrishnan, S. Floyd, D. Black | Proposed Standard | September 2001 |
| 3246 | An Expedited Forwarding PHB (Per-Hop Behavior)B. Davie, A. Charny, J.C.R. Bennet, K. Benson, J.Y. Le Boudec, W. Courtney, S. Davari, V. Firoiu, D. Stiliadis | Proposed Standard | March 2002 |
| 3270 | Multi-Protocol Label Switching (MPLS) Support of Differentiated ServicesF. Le Faucheur, Ed., L. Wu, B. Davie, S. Davari, P. Vaananen, R. Krishnan, P. Cheval, J. Heinanen | Proposed Standard | May 2002 |
| 3550 | RTP: A Transport Protocol for Real-Time ApplicationsH. Schulzrinne, S. Casner, R. Frederick, V. Jacobson | Internet Standard | July 2003 |
| 3662 | A Lower Effort Per-Domain Behavior (PDB) for Differentiated ServicesR. Bless, K. Nichols, K. Wehrle · obsoleted by RFC 8622 | Informational | December 2003 |
| 3828 | The Lightweight User Datagram Protocol (UDP-Lite)L-A. Larzon, M. Degermark, S. Pink, L-E. Jonsson, Ed., G. Fairhurst, Ed. | Proposed Standard | July 2004 |
| 4103 | RTP Payload for Text ConversationG. Hellstrom, P. Jones | Proposed Standard | June 2005 |
| 4303 | IP Encapsulating Security Payload (ESP)S. Kent | Proposed Standard | December 2005 |
| 4340 | Datagram Congestion Control Protocol (DCCP)E. Kohler, M. Handley, S. Floyd | Proposed Standard | March 2006 |
| 4566 | SDP: Session Description ProtocolM. Handley, V. Jacobson, C. Perkins · obsoleted by RFC 8866 | Proposed Standard | July 2006 |
| 4594 | Configuration Guidelines for DiffServ Service ClassesJ. Babiarz, K. Chan, F. Baker | Informational | August 2006 |
| 4960 | Stream Control Transmission ProtocolR. Stewart, Ed. · obsoleted by RFC 9260 | Proposed Standard | September 2007 |
| 5109 | RTP Payload Format for Generic Forward Error CorrectionA. Li, Ed. | Proposed Standard | December 2007 |
| 5127 | Aggregation of Diffserv Service ClassesK. Chan, J. Babiarz, F. Baker | Informational | February 2008 |
| 5129 | Explicit Congestion Marking in MPLSB. Davie, B. Briscoe, J. Tay | Proposed Standard | January 2008 |
| 5245 | Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer ProtocolsJ. Rosenberg · obsoleted by RFC 8445, RFC 8839 | Proposed Standard | April 2010 |
| 5389 | Session Traversal Utilities for NAT (STUN)J. Rosenberg, R. Mahy, P. Matthews, D. Wing · obsoleted by RFC 8489 | Proposed Standard | October 2008 |
| 5405 | Unicast UDP Usage Guidelines for Application DesignersL. Eggert, G. Fairhurst · obsoleted by RFC 8085 | Best Current Practice | November 2008 |
| 5462 | Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" FieldL. Andersson, R. Asati | Proposed Standard | February 2009 |
| 5741 | RFC Streams, Headers, and BoilerplatesL. Daigle, Ed., O. Kolkman, Ed., IAB · obsoleted by RFC 7841 | Informational | December 2009 |
| 5761 | Multiplexing RTP Data and Control Packets on a Single PortC. Perkins, M. Westerlund | Proposed Standard | April 2010 |
| 5764 | Datagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP)D. McGrew, E. Rescorla | Proposed Standard | May 2010 |
| 5766 | Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)R. Mahy, P. Matthews, J. Rosenberg · obsoleted by RFC 8656 | Proposed Standard | April 2010 |
| 5865 | A Differentiated Services Code Point (DSCP) for Capacity-Admitted TrafficF. Baker, J. Polk, M. Dolly | Proposed Standard | May 2010 |
| 6062 | Traversal Using Relays around NAT (TURN) Extensions for TCP AllocationsS. Perreault, Ed., J. Rosenberg | Proposed Standard | November 2010 |
| 6274 | Security Assessment of the Internet Protocol Version 4F. Gont | Informational | July 2011 |
| 6386 | VP8 Data Format and Decoding GuideJ. Bankoski, J. Koleszar, L. Quillio, J. Salonen, P. Wilkins, Y. Xu | Informational | November 2011 |
| 6437 | IPv6 Flow Label SpecificationS. Amante, B. Carpenter, S. Jiang, J. Rajahalme | Proposed Standard | November 2011 |
| 6458 | Sockets API Extensions for the Stream Control Transmission Protocol (SCTP)R. Stewart, M. Tuexen, K. Poon, P. Lei, V. Yasevich | Informational | December 2011 |
| 6951 | UDP Encapsulation of Stream Control Transmission Protocol (SCTP) Packets for End-Host to End-Host CommunicationM. Tuexen, R. Stewart | Proposed Standard | May 2013 |
| 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 |