Local Calling Guide

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Switch: DLLSTXNO

Switch (link to prefixes) Switch name Company
DLLSTXNODS0 Northlake  9533 SOUTHWESTERN BELL 
DLLSTXNODS0 Northlake  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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