Local Calling Guide

Switch search

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

Switch: GTHROKMA

Switch (link to prefixes) Switch name Company
GTHROKMARS1 GUTHRIE  9533 SOUTHWESTERN BELL 

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.