Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-715 6 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-715 7 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-715 8 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-715 9 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-716 A Dallas TX DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-717 A Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-718 A Irving EMS TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-719 A Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-720 A Dallas TX DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-720 0 Dallas TX   5562 METROPCS, INC. 552   2019-07-18   
972-720 1 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 2 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 3 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 4 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 5 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 6 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 7 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 8 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-720 9 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-721 A Irving TX IRNGTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-722 A Rockwall TX RKWLTXPADS0  9533 SOUTHWESTERN BELL 552      
972-723 A Midlothian EMS TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-723 0 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 1 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 2 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 3 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 4 Midlothian EMS TX   903C ONVOY, LLC - TX 552   2003-10-27   
972-723 5 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 6 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 7 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 8 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-723 9 Midlothian EMS TX   9533 SOUTHWESTERN BELL 552      
972-724 A Lewisville EMS TX LWVLTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-725 A Dallas TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 0 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 1 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 2 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 3 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 4 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 5 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 6 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-725 7 Dallas TX   903C ONVOY, LLC - TX 552   2010-05-14   
972-725 8 Dallas TX   903C ONVOY, LLC - TX 552   2010-11-03   
972-725 9 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-726 A Dallas TX DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-727 A Allen EACS TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-728 A Dallas TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 A Dallas TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 0 Dallas TX   5562 METROPCS, INC. 552   2012-02-23   
972-729 1 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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