| RFC0748 | TELNET RANDOMLY-LOSE Option | M. Crispin | 1 April 1978 |
| RFC1097 | TELNET SUBLIMINAL-MESSAGE Option | B. Miller | 1 April 1989 |
| RFC1149 | A Standard for the Transmission of IP Datagrams on Avian Carriers | D. Waitzman | 1 April 1990 |
| RFC1217 | Memo from the Consortium for Slow Commotion Research (CSCR) | V. Cerf | 1 April 1991 |
| RFC1313 | Today's Programming for KRFC AM 1313 Internet Talk Radio | C. Partridge | 1 April 1991 |
| RFC1437 | The Extension of MIME Content-Types to a New Medium | N. Borenstein | 1 April 1993 |
| RFC1438 | Internet Engineering Task Force Statements Of Boredom (SOBs) | L. Chapin | 1 April 1993 |
| RFC1605 | SONET to Sonnet Translation | W. Shakespeare | 1 April 1994 |
| RFC1606 | A Historical Perspective On The Usage Of IP Version 9 | J. Onions | 1 April 1994 |
| RFC1607 | A VIEW FROM THE 21ST CENTURY | V. Cerf | 1 April 1994 |
| RFC1639 | FTP Operation Over Big Address Records (FOOBAR) | D. Piscitello | June 1994 |
| RFC1776 | The Address is the Message | S. Crocker | 1 April 1995 |
| RFC1925 | The Twelve Networking Truths | R. Callon | 1 April 1996 |
| RFC1926 | An Experimental Encapsulation of IP Datagrams on Top of ATM | J. Eriksson | 1 April 1996 |
| RFC1927 | Suggested Additional MIME Types for Associating Documents | C. Rogers | 1 April 1996 |
| RFC2100 | The Naming of Hosts | J. Ashworth | 1 April 1997 |
| RFC2321 | RITA -- The Reliable Internetwork Troubleshooting Agent | A. Bressen | 1 April 1998 |
| RFC2322 | Management of IP numbers by peg-dhcp | K. van den Hout, et. al. | 1 April 1998 |
| RFC2323 | IETF Identification and Security Guidelines | A. Ramos | 1 April 1998 |
| RFC2324 | Hyper Text Coffee Pot Control Protocol (HTCPCP/1.0) | L. Masinter | 1 April 1998 |
| RFC2325 |
Definitions of Managed Objects for Drip-Type Heated Beverage Hardware Devices using SMIv2 |
M. Slavitch | 1 April 1998 |
| RFC2549 | IP over Avian Carriers with Quality of Service | D. Waitzman | 1 April 1999 |
| RFC2550 | Y10K and Beyond | S. Glassman, et. al. | 1 April 1999 |
| RFC2551 | The Roman Standards Process -- Revision III | S. Bradner | I April MCMXCIX |
| RFC2795 | The Infinite Monkey Protocol Suite (IMPS) | S. Christey | 1 April 2000 |
| RFC3091 | Pi Digit Generation Protocol | H. Kennedy | 1 April 2001 |
| RFC3092 | Etymology of "Foo" | Eastlake, et al. | 1 April 2001 |
| RFC3093 | Firewall Enhancement Protocol (FEP) | Gaynor & Bradner | 1 April 2001 |
| RFC3251 | Electricity over IP | B. Rajagopalan | 1 April 2002 |
| RFC3252 | Binary Lexical Octet Ad-hoc Transport | H. Kennedy | 1 April 2002 |