Local Calling Guide

Switch search

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

Switch: HSTNTXNA

Switch (link to prefixes) Switch name Company
HSTNTXNADS0 NATIONAL  9533 SOUTHWESTERN BELL 
HSTNTXNADS1 NATIONAL  9533 SOUTHWESTERN BELL 

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.