Local Calling Guide

Switch search

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

Switch: TGRDORAO

Switch (link to prefixes) Switch name Company
TGRDORAODS0 PORTLAND  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 
TGRDORAODS0 PORTLAND  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.