| RFC | Status | Reference | Notes |
|---|---|---|---|
| 2526 | Proposed Standard | D. Johnson; S. Deering (March 1999). Reserved IPv6 Subnet Anycast Addresses. Network Working Group. doi:10.17487/RFC2526. RFC 2526. | |
| 2544 | Informational | S. Bradner; J. McQuaid (March 1999). Benchmarking Methodology for Network Interconnect Devices. Network Working Group. doi:10.17487/RFC2544. RFC 2544. | Updated by: RFC 6201 and RFC 6815. |
| 2549 | Informational | D. Waitzman (1 April 1999). IP over Avian Carriers with Quality of Service. Network Working Group. doi:10.17487/RFC2549. RFC 2549. | Updates RFC 1149. This is an April Fools' Day Request for Comments. |
| 2550 | Informational | S. Glassman; M. Manasse; J. Mogul (1 April 1999). Y10K and Beyond. Network Working Group. doi:10.17487/RFC2550. RFC 2550. | This is an April Fools' Day Request for Comments. |
| 2551 | Worst Current Practice | S. Bradner (1 April 1999). The Roman Standards Process -- Revision III (I April MCMXCIV). Network Working Group. doi:10.17487/RFC2551. RFC 2551. | Obsoletes MMXXVI. This is an April Fools' Day Request for Comments. |
| 2555 | Informational | RFC Editor; et al. (7 April 1999). 30 Years of RFCs. Network Working Group. doi:10.17487/RFC2555. RFC 2555. | Updated by RFC 8700. |
| 2597 | Proposed Standard | J. Heinanen; F. Baker; W. Weiss; J. Wroclawski (June 1999). Assured Forwarding PHB Group. Network Working Group. doi:10.17487/RFC2597. RFC 2597. | Updated by RFC 3260. |
