Local Calling Guide

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NPA: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-510 A Irving TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-510 0 Irving TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-510 1 Irving TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-510 2 Irving TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-510 3 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2007-07-19   
972-510 4 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2007-07-19   
972-510 5 Irving TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-11-20   
972-510 6 Irving TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-510 7 Irving TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-04-05   
972-510 8 Irving TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-04-05   
972-510 9 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2007-07-19   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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