Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-635 4 Royse City TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-07-06   
972-635 5 Royse City TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-03-15   
972-635 6 Royse City TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-635 7 Royse City TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-635 8 Royse City TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-04-09   
972-635 9 Royse City TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 A Royse City EMS TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 0 Royse City EMS TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 1 Royse City EMS TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-06-24   
972-636 2 Royse City EMS TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 3 Royse City EMS TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 4 Royse City EMS TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-22   
972-636 5 Royse City EMS TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-05-08   
972-636 6 Royse City EMS TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-01-07   
972-636 7 Royse City EMS TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 8 Royse City EMS TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-05-08   
972-636 9 Royse City EMS TX RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-637 A Cedar Hill TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-637 0 Cedar Hill TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-637 1 Cedar Hill TX DLLSTXHW6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552   2007-07-13   
972-637 2 Cedar Hill TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-14   
972-637 3 Cedar Hill TX RCSNTXHVBMD  516C AT&T CORP. 552   2006-06-30   
972-637 4 Cedar Hill TX RCSNTXHVBMD  516C AT&T CORP. 552   2013-11-11   
972-637 5 Cedar Hill TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-637 6 Cedar Hill TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2003-07-16   
972-637 7 Cedar Hill TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-11-26   
972-637 8 Cedar Hill TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2013-12-06   
972-637 9 Cedar Hill TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2013-12-06   
972-638 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-638 0 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-08-16   
972-638 1 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-638 2 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-638 3 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-638 4 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-638 5 Dallas TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2010-09-20   
972-638 6 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-638 7 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-10-28   
972-638 8 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-01-15   
972-638 9 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-08-16   
972-639 A Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-639 0 Grand Prairie EMS TX DLLTTXID1MD  5562 METROPCS, INC. 552   2006-08-07   
972-639 1 Grand Prairie EMS TX DLLTTXID1MD  5562 METROPCS, INC. 552   2006-08-07   
972-639 2 Grand Prairie EMS TX DLLTTXID1MD  5562 METROPCS, INC. 552   2006-08-07   
972-639 3 Grand Prairie EMS TX RCSNTXHVBMD  516C AT&T CORP. 552   2006-07-07   
972-639 4 Grand Prairie EMS TX DLLTTXID1MD  5562 METROPCS, INC. 552   2006-08-07   
972-639 5 Grand Prairie EMS TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-06-30   
972-639 6 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-04-23   
972-639 7 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-04-23   
972-639 8 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-04-23   
972-639 9 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-04-23   
972-640 A Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
972-640 0 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 1 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 2 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 3 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 4 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 5 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 6 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 7 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 8 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-640 9 Grand Prairie TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2022-07-04   
972-641 A Grand Prairie TX DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
972-642 A Grand Prairie TX DLLSTXGPRPA  9533 SOUTHWESTERN BELL 552      
972-643 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 0 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 1 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 2 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 3 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 4 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 5 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 6 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 7 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-643 8 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-08-16   
972-643 9 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-644 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-645 A Italy TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-645 0 Italy TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2019-06-27   
972-645 1 Italy TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2018-03-08   
972-645 2 Italy TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2019-10-07   
972-645 3 Italy TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2019-10-07   
972-645 4 Italy TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2019-10-07   
972-645 5 Italy TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-645 6 Italy TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2018-07-26   
972-645 7 Italy TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2019-10-30   
972-645 8 Italy TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2019-12-14   
972-645 9 Italy TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-646 A Bardwell TX BRWLTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-646 0 Bardwell TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-03-12   
972-646 1 Bardwell TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-02-27   
972-646 2 Bardwell TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-02-12   
972-646 3 Bardwell TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-09-10   
972-646 4 Bardwell TX BRWLTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-646 5 Bardwell TX BRWLTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-646 6 Bardwell TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2003-06-17   
972-646 7 Bardwell TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-02-12   
972-646 8 Bardwell TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-03-07   
972-646 9 Bardwell TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-10-07   
972-647 A Grand Prairie EMS TX DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
972-648 A Grand Prairie EMS TX DLLSTXRIXIZ  9748 AMERICAN MESSAGING SERVICES, LLC 552      
972-649 A Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.