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: Sat, 21 Mar 2026 23:53:39 UTC

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