| 9580 | OpenPGPP. Wouters, Ed., D. Huigens, J. Winter, Y. Niibe | Proposed Standard | July 2024 |
| 9559 | Matroska Media Container Format SpecificationS. Lhomme, M. Bunkus, D. Rice | Proposed Standard | October 2024 |
| 9530 | Digest FieldsR. Polli, L. Pardue | Proposed Standard | February 2024 |
| 9112 | HTTP/1.1R. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9110 | HTTP SemanticsR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 8879 | TLS Certificate CompressionA. Ghedini, V. Vasiliev | Proposed Standard | December 2020 |
| 8494 | Multicast Email (MULE) over Allied Communications Publication (ACP) 142D. Wilson, A. Melnikov, Ed. | Informational | November 2018 |
| 7230 | Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and RoutingR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110, RFC 9112 | Proposed Standard | June 2014 |
| 6726 | FLUTE - File Delivery over Unidirectional TransportT. Paila, R. Walsh, M. Luby, V. Roca, R. Lehtonen | Proposed Standard | November 2012 |
| 6713 | The 'application/zlib' and 'application/gzip' Media TypesJ. Levine | Informational | August 2012 |
| 6143 | The Remote Framebuffer ProtocolT. Richardson, J. Levine | Informational | March 2011 |
| 5402 | Compressed Data within an Internet Electronic Data Interchange (EDI) MessageT. Harding, Ed. | Informational | February 2010 |
| 5024 | ODETTE File Transfer Protocol 2.0I. Friend | Informational | November 2007 |
| 4880 | OpenPGP Message FormatJ. Callas, L. Donnerhacke, H. Finney, D. Shaw, R. Thayer · obsoleted by RFC 9580 | Proposed Standard | November 2007 |
| 4460 | Stream Control Transmission Protocol (SCTP) Specification Errata and IssuesR. Stewart, I. Arias-Rodriguez, K. Poon, A. Caro, M. Tuexen · obsoleted by RFC 9260 | Informational | April 2006 |
| 4253 | The Secure Shell (SSH) Transport Layer ProtocolT. Ylonen, C. Lonvick, Ed. | Proposed Standard | January 2006 |
| 3926 | FLUTE - File Delivery over Unidirectional TransportT. Paila, M. Luby, R. Lehtonen, V. Roca, R. Walsh · obsoleted by RFC 6726 | Experimental | October 2004 |
| 3385 | Internet Protocol Small Computer System Interface (iSCSI) Cyclic Redundancy Check (CRC)/Checksum ConsiderationsD. Sheinwald, J. Satran, P. Thaler, V. Cavanna | Informational | September 2002 |
| 3274 | Compressed Data Content Type for Cryptographic Message Syntax (CMS)P. Gutmann | Proposed Standard | June 2002 |
| 3229 | Delta encoding in HTTPJ. Mogul, B. Krishnamurthy, F. Douglis, A. Feldmann, Y. Goland, A. van Hoff, D. Hellerstein | Proposed Standard | January 2002 |
| 2974 | Session Announcement ProtocolM. Handley, C. Perkins, E. Whelan | Experimental | October 2000 |
| 2960 | Stream Control Transmission ProtocolR. Stewart, Q. Xie, K. Morneault, C. Sharp, H. Schwarzbauer, T. Taylor, I. Rytina, M. Kalla, L. Zhang, V. Paxson · obsoleted by RFC 4960 | Proposed Standard | October 2000 |
| 2813 | Internet Relay Chat: Server ProtocolC. Kalt | Informational | April 2000 |
| 2616 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee · obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235 | Draft Standard | June 1999 |
| 2440 | OpenPGP Message FormatJ. Callas, L. Donnerhacke, H. Finney, R. Thayer · obsoleted by RFC 4880 | Proposed Standard | November 1998 |
| 2083 | PNG (Portable Network Graphics) Specification Version 1.0T. Boutell | Historic | March 1997 |
| 2068 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, T. Berners-Lee · obsoleted by RFC 2616 | Proposed Standard | January 1997 |