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: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-664 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 0 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 1 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 2 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 3 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 4 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
972-664 5 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 6 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 7 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 8 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-664 9 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      

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

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