RFC 305 · UNKNOWN · 1972
SUN · 14 JUN 2026
Unknown Host Numbers
Overview
RFC 305, “Unknown Host Numbers”, is an Unknown document published in February 1972 by R. Alter. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 305 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1972
- RFC 304 Data Management System Proposal for the ARPA Network
- RFC 306 Network host status
- RFC 303 ARPA Network mailing lists
- RFC 307 Using network Remote Job Entry
- RFC 302 Exercising The ARPANET
- RFC 308 ARPANET host availability data
- RFC 301 BBN IMP and NCC Schedule March 4, 1971
- RFC 309 Data and File Transfer Workshop Announcement