Local Calling Guide

Switch search

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

Switch: PTOLCA01

Switch (link to prefixes) Switch name Company
PTOLCA01RS0 PORTOLA  9740 PACIFIC BELL 

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.