| 791 | Internet ProtocolJ. Postel | Internet Standard | September 1981 |
| 793 | Transmission Control ProtocolJ. Postel · obsoleted by RFC 9293 | Internet Standard | September 1981 |
| 1305 | Network Time Protocol (Version 3) Specification, Implementation and AnalysisD. Mills · obsoleted by RFC 5905 | Historic | March 1992 |
| 1321 | The MD5 Message-Digest AlgorithmR. Rivest | Informational | April 1992 |
| 1890 | RTP Profile for Audio and Video Conferences with Minimal ControlAudio-Video Transport Working Group, H. Schulzrinne · obsoleted by RFC 3551 | Proposed Standard | January 1996 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2578 | Structure of Management Information Version 2 (SMIv2)K. McCloghrie, Ed., D. Perkins, Ed., J. Schoenwaelder, Ed. | Internet Standard | April 1999 |
| 2579 | Textual Conventions for SMIv2K. McCloghrie, Ed., D. Perkins, Ed., J. Schoenwaelder, Ed. | Internet Standard | April 1999 |
| 2580 | Conformance Statements for SMIv2K. McCloghrie, Ed., D. Perkins, Ed., J. Schoenwaelder, Ed. | Internet Standard | April 1999 |
| 2819 | Remote Network Monitoring Management Information BaseS. Waldbusser | Internet Standard | May 2000 |
| 3289 | Management Information Base for the Differentiated Services ArchitectureF. Baker, K. Chan, A. Smith | Proposed Standard | June 2002 |
| 3410 | Introduction and Applicability Statements for Internet-Standard Management FrameworkJ. Case, R. Mundy, D. Partain, B. Stewart | Informational | December 2002 |
| 3411 | An Architecture for Describing Simple Network Management Protocol (SNMP) Management FrameworksD. Harrington, R. Presuhn, B. Wijnen | Internet Standard | December 2002 |
| 3414 | User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)U. Blumenthal, B. Wijnen | Internet Standard | December 2002 |
| 3550 | RTP: A Transport Protocol for Real-Time ApplicationsH. Schulzrinne, S. Casner, R. Frederick, V. Jacobson | Internet Standard | July 2003 |
| 3551 | RTP Profile for Audio and Video Conferences with Minimal ControlH. Schulzrinne, S. Casner | Internet Standard | July 2003 |
| 3629 | UTF-8, a transformation format of ISO 10646F. Yergeau | Internet Standard | November 2003 |
| 3737 | IANA Guidelines for the Registry of Remote Monitoring (RMON) MIB modulesB. Wijnen, A. Bierman | Proposed Standard | April 2004 |
| 4001 | Textual Conventions for Internet Network AddressesM. Daniele, B. Haberman, S. Routhier, J. Schoenwaelder | Proposed Standard | March 2005 |
| 4279 | Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)P. Eronen, Ed., H. Tschofenig, Ed. | Proposed Standard | December 2005 |
| 4346 | The Transport Layer Security (TLS) Protocol Version 1.1T. Dierks, E. Rescorla · obsoleted by RFC 5246 | Historic | April 2006 |
| 4513 | Lightweight Directory Access Protocol (LDAP): Authentication Methods and Security MechanismsR. Harrison, Ed. | Proposed Standard | June 2006 |
| 4710 | Real-time Application Quality-of-Service Monitoring (RAQMON) FrameworkA. Siddiqui, D. Romascanu, E. Golovinsky | Proposed Standard | October 2006 |