| 1034 | Domain names - concepts and facilitiesP. Mockapetris | Internet Standard | November 1987 |
| 1035 | Domain names - implementation and specificationP. Mockapetris | Internet Standard | November 1987 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2131 | Dynamic Host Configuration ProtocolR. Droms | Draft Standard | March 1997 |
| 2136 | Dynamic Updates in the Domain Name System (DNS UPDATE)P. Vixie, Ed., S. Thomson, Y. Rekhter, J. Bound | Proposed Standard | April 1997 |
| 2671 | Extension Mechanisms for DNS (EDNS0)P. Vixie · obsoleted by RFC 6891 | Proposed Standard | August 1999 |
| 2782 | A DNS RR for specifying the location of services (DNS SRV)A. Gulbrandsen, P. Vixie, L. Esibov | Proposed Standard | February 2000 |
| 2915 | The Naming Authority Pointer (NAPTR) DNS Resource RecordM. Mealling, R. Daniel · obsoleted by RFC 3401, RFC 3402, RFC 3403, RFC 3404 | Proposed Standard | September 2000 |
| 2916 | E.164 number and DNSP. Faltstrom · obsoleted by RFC 3761 | Proposed Standard | September 2000 |
| 3245 | The History and Context of Telephone Number Mapping (ENUM) Operational Decisions: Informational Documents Contributed to ITU-T Study Group 2 (SG2)J. Klensin, Ed., IAB | Informational | March 2002 |
| 3263 | Session Initiation Protocol (SIP): Locating SIP ServersJ. Rosenberg, H. Schulzrinne | Proposed Standard | July 2002 |
| 3401 | Dynamic Delegation Discovery System (DDDS) Part One: The Comprehensive DDDSM. Mealling | Informational | October 2002 |
| 3402 | Dynamic Delegation Discovery System (DDDS) Part Two: The AlgorithmM. Mealling | Proposed Standard | October 2002 |
| 3403 | Dynamic Delegation Discovery System (DDDS) Part Three: The Domain Name System (DNS) DatabaseM. Mealling | Proposed Standard | October 2002 |
| 3404 | Dynamic Delegation Discovery System (DDDS) Part Four: The Uniform Resource Identifiers (URI)M. Mealling | Proposed Standard | October 2002 |
| 3492 | Punycode: A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)A. Costello | Proposed Standard | March 2003 |
| 3597 | Handling of Unknown DNS Resource Record (RR) TypesA. Gustafsson | Proposed Standard | September 2003 |
| 3629 | UTF-8, a transformation format of ISO 10646F. Yergeau | Internet Standard | November 2003 |
| 3761 | The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)P. Faltstrom, M. Mealling · obsoleted by RFC 6116, RFC 6117 | Proposed Standard | April 2004 |
| 3824 | Using E.164 numbers with the Session Initiation Protocol (SIP)J. Peterson, H. Liu, J. Yu, B. Campbell | Informational | June 2004 |
| 3833 | Threat Analysis of the Domain Name System (DNS)D. Atkins, R. Austein | Informational | August 2004 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 3987 | Internationalized Resource Identifiers (IRIs)M. Duerst, M. Suignard | Proposed Standard | January 2005 |
| 4033 | DNS Security Introduction and RequirementsR. Arends, R. Austein, M. Larson, D. Massey, S. Rose | Proposed Standard | March 2005 |
| 5234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell | Internet Standard | January 2008 |
| 5483 | ENUM Implementation Issues and ExperiencesL. Conroy, K. Fujiwara | Informational | March 2009 |
| 5741 | RFC Streams, Headers, and BoilerplatesL. Daigle, Ed., O. Kolkman, Ed., IAB · obsoleted by RFC 7841 | Informational | December 2009 |
| 6117 | IANA Registration of Enumservices: Guide, Template, and IANA ConsiderationsB. Hoeneisen, A. Mayrhofer, J. Livingood | Proposed Standard | March 2011 |