Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 643

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-643 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 0 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 1 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 2 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 3 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 4 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 5 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 6 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 7 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 8 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-08-16   
972-643 9 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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