Local Calling Guide

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Switch: HSTNTXAL

Switch (link to prefixes) Switch name Company
HSTNTXALDS0 ALIEF  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 
HSTNTXALDS0 ALIEF  9533 SOUTHWESTERN BELL 

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

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