Local Calling Guide

Switch search

Search by CLLI code
  • Enter full or partial CLLI code to see all matching switches.

Switch: PRSPORXX

Switch (link to prefixes) Switch name Company
PRSPORXXRS0 PROSPECT  4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.