Local Calling Guide

Switch search

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

Switch: PSTNAZXC

Switch (link to prefixes) Switch name Company
PSTNAZXCAMD    
PSTNAZXCRS1 POSTON  4419 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ 

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.