| RFC | Status | Reference | Notes |
|---|---|---|---|
| 2606 | Best Common Practice | D. Eastlake; A. Panitz (June 1999). Reserved Top Level DNS Names. Network Working Group. doi:10.17487/RFC2606. BCP 32. RFC 2606. | Updated by RFC 6761. |
| 2616 | Obsolete | R. Fielding; J. Gettys; J. Mogul; H. Frystyk; L. Masinter; P. Leach; T. Berners-Lee (August 1999). Hypertext Transfer Protocol -- HTTP/1.1. Network Working Group. doi:10.17487/RFC2616. RFC 2616. | Obsoleted by RFC 7230, 7231, 7232, 7233, 7234 and 7235. Obsoletes RFC 2068. Updated by RFC 2817, 5785, 6266 and 6585. |
| 2637 | Informational | K. Hamzeh; G. Pall; W. Verthein; J. Taarud; W. Little; G. Zorn (July 1999). Point-to-Point Tunneling Protocol (PPTP). Network Working Group. doi:10.17487/RFC2637. RFC 2637. | |
| 2644 | Best Common Practice | D. Senie (August 1999). Changing the Default for Directed Broadcasts in Routers. Network Working Group. doi:10.17487/RFC2644. BCP 34. RFC 2644. | Updates RFC 1812. |
| 2663 | Informational | P. Srisuresh; M. Holdrege (August 1999). IP Network Address Translator (NAT) Terminology and Considerations. Network Working Group. doi:10.17487/RFC2663. RFC 2663. | |
| 2675 | Proposed Standard | D. Borman; S. Deering; R. Hinden (August 1999). IPv6 Jumbograms. Network Working Group. doi:10.17487/RFC2675. RFC 2675. | Obsoletes RFC 2147. |
