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: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-663 A Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 0 Dallas TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2021-05-22   
972-663 1 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 2 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 3 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 4 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 5 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-08-03   
972-663 6 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 7 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 8 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-663 9 Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      

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

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