| 1928 | SOCKS Protocol Version 5M. Leech, M. Ganis, Y. Lee, R. Kuris, D. Koblas, L. Jones | Proposed Standard | March 1996 |
| 2782 | A DNS RR for specifying the location of services (DNS SRV)A. Gulbrandsen, P. Vixie, L. Esibov | Proposed Standard | February 2000 |
| 3124 | The Congestion ManagerH. Balakrishnan, S. Seshan | Proposed Standard | June 2001 |
| 3207 | SMTP Service Extension for Secure SMTP over Transport Layer SecurityP. Hoffman | Proposed Standard | February 2002 |
| 6525 | Stream Control Transmission Protocol (SCTP) Stream ReconfigurationR. Stewart, M. Tuexen, P. Lei | Proposed Standard | March 2012 |
| 6762 | Multicast DNSS. Cheshire, M. Krochmal | Proposed Standard | February 2013 |
| 6763 | DNS-Based Service DiscoveryS. Cheshire, M. Krochmal | Proposed Standard | February 2013 |
| 7413 | TCP Fast OpenY. Cheng, J. Chu, S. Radhakrishnan, A. Jain | Experimental | December 2014 |
| 7657 | Differentiated Services (Diffserv) and Real-Time CommunicationD. Black, Ed., P. Jones | Informational | November 2015 |
| 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 |
| 8260 | Stream Schedulers and User Message Interleaving for the Stream Control Transmission ProtocolR. Stewart, M. Tuexen, S. Loreto, R. Seggelmann | Proposed Standard | November 2017 |
| 8303 | On the Usage of Transport Features Provided by IETF Transport ProtocolsM. Welzl, M. Tuexen, N. Khademi | Informational | February 2018 |
| 8304 | Transport Features of the User Datagram Protocol (UDP) and Lightweight UDP (UDP-Lite)G. Fairhurst, T. Jones | Informational | February 2018 |
| 8305 | Happy Eyeballs Version 2: Better Connectivity Using ConcurrencyD. Schinazi, T. Pauly | Proposed Standard | December 2017 |
| 8421 | Guidelines for Multihomed and IPv4/IPv6 Dual-Stack Interactive Connectivity Establishment (ICE)P. Martinsen, T. Reddy, P. Patil | Best Current Practice | July 2018 |
| 8445 | Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) TraversalA. Keranen, C. Holmberg, J. Rosenberg | Proposed Standard | July 2018 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8489 | Session Traversal Utilities for NAT (STUN)M. Petit-Huguenin, G. Salgueiro, J. Rosenberg, D. Wing, R. Mahy, P. Matthews | Proposed Standard | February 2020 |
| 8656 | Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)T. Reddy, Ed., A. Johnston, Ed., P. Matthews, J. Rosenberg | Proposed Standard | February 2020 |
| 8923 | A Minimal Set of Transport Services for End SystemsM. Welzl, S. Gjessing | Informational | October 2020 |
| 9000 | QUIC: A UDP-Based Multiplexed and Secure TransportJ. Iyengar, Ed., M. Thomson, Ed. | Proposed Standard | May 2021 |
| 9040 | TCP Control Block InterdependenceJ. Touch, M. Welzl, S. Islam | Informational | July 2021 |
| 9110 | HTTP SemanticsR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9113 | HTTP/2M. Thomson, Ed., C. Benfield, Ed. | Proposed Standard | June 2022 |
| 9460 | Service Binding and Parameter Specification via the DNS (SVCB and HTTPS Resource Records)B. Schwartz, M. Bishop, E. Nygren | Proposed Standard | November 2023 |
| 9621 | Architecture and Requirements for Transport ServicesT. Pauly, Ed., B. Trammell, Ed., A. Brunstrom, G. Fairhurst, C. S. Perkins | Proposed Standard | January 2025 |
| 9622 | An Abstract Application Programming Interface (API) for Transport ServicesB. Trammell, Ed., M. Welzl, Ed., R. Enghardt, G. Fairhurst, M. Kühlewind, C. S. Perkins, P.S. Tiesel, T. Pauly | Proposed Standard | January 2025 |