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: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-388 A Dallas TX DLLSTXFBRS2  9533 SOUTHWESTERN BELL 552      
972-388 0 Dallas TX DLLSTXFBRS2  9533 SOUTHWESTERN BELL 552      
972-388 1 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2007-11-02   
972-388 2 Dallas TX DLLSTXFBRS2  9533 SOUTHWESTERN BELL 552      
972-388 3 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2014-06-11   
972-388 4 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-24   
972-388 5 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2007-12-17   
972-388 6 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-24   
972-388 7 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2008-02-14   
972-388 8 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2004-11-05   
972-388 9 Dallas TX DLLSTXFBRS2  9533 SOUTHWESTERN BELL 552      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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