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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
972-395 7 Carrollton TX CRTNTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-395 8 Carrollton TX CRTNTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-395 9 Carrollton TX CRTNTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-396 A Allen EACS TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-397 A Grand Prairie EMS TX DLLSTXJP2MD  6630 USA MOBILITY WIRELESS, INC. 552      
972-398 A Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-399 A Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 0 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 1 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 2 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 3 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 4 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 5 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 6 Irving EMS TX DLLTTX01DMD  5562 METROPCS, INC. 552   2008-02-24   
972-399 7 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 8 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-399 9 Irving EMS TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-15   
972-400 A Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-400 0 Grand Prairie EMS TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-09-09   
972-400 1 Grand Prairie EMS TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-09-09   
972-400 2 Grand Prairie EMS TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-09-09   
972-400 3 Grand Prairie EMS TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2007-08-09   
972-400 4 Grand Prairie EMS TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2007-05-16   
972-400 5 Grand Prairie EMS TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2007-08-09   
972-400 6 Grand Prairie EMS TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2007-08-09   
972-400 7 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-07-20   
972-400 8 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-07-20   
972-400 9 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-07-20   
972-401 A Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 A Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 0 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 1 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 2 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 3 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 4 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 5 Dallas TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2016-01-04   
972-402 6 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-02-15   
972-402 7 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 8 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-402 9 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-403 A Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 0 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 1 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 2 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 3 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 4 Plano TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-09-28   
972-403 5 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 6 Plano TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-11-11   
972-403 7 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 8 Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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