Local Calling Guide

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Switch: FRSCTXES

Switch (link to prefixes) Switch name Company
FRSCTXESDS0 Frisco Essex  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 
FRSCTXESDS0 Frisco Essex  9533 SOUTHWESTERN BELL 

Last updated: Sun, 17 May 2026 03:26:51 UTC

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