RFC 255 · UNKNOWN · 1971
SUN · 14 JUN 2026
Status of network hosts
Overview
RFC 255, “Status of network hosts”, is an Unknown document published in October 1971 by E. Westheimer. It obsoletes RFC 252. It has been obsoleted by RFC 266 — refer to the newer document for the authoritative version. 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 255 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1971
- RFC 256 IMPSYS change notification
- RFC 254 Scenarios for using ARPANET computers
- RFC 253 Second Network Graphics meeting details
- RFC 252 Network host status
- RFC 251 Weather data
- RFC 250 Some thoughts on file transfer
- RFC 249 Coordination of equipment and supplies purchase
- RFC 263 "Very Distant" Host interface