Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Plano, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-981 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-985 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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