# ARPA Host Name Server Protocol

> long-obsolete hostname lookup protocol

**Wikidata**: [Q4653887](https://www.wikidata.org/wiki/Q4653887)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/ARPA_Host_Name_Server_Protocol)  
**Source**: https://4ort.xyz/entity/arpa-host-name-server-protocol