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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-513 1 Irving TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-513 2 Irving TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-513 3 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2006-08-28   
972-513 4 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2009-03-05   
972-513 5 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2006-08-28   
972-513 6 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2006-08-28   
972-513 7 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2006-08-28   
972-513 8 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2009-02-20   
972-513 9 Irving TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-514 A Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-514 0 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-514 1 Irving EMS TX IRNGTXXBXQX  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552   2002-09-10   
972-514 2 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-514 3 Irving EMS TX DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2008-09-13   
972-514 4 Irving EMS TX DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2008-09-13   
972-514 5 Irving EMS TX DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2008-09-13   
972-514 6 Irving EMS TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-11-20   
972-514 7 Irving EMS TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-11-20   
972-514 8 Irving EMS TX IRNGTX276MD  327E YMAX COMMUNICATIONS CORP. - TX 552   2008-09-13   
972-514 9 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-515 A Red Oak (Ovilla) TX RDOKTXHORS0  9533 SOUTHWESTERN BELL 552      
972-515 0 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2014-11-07   
972-515 1 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2014-12-12   
972-515 2 Red Oak (Ovilla) TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-15   
972-515 3 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2014-12-12   
972-515 4 Red Oak (Ovilla) TX DLLSTX64DS3  4911 IONEX COMMUNICATIONS SOUTH, INC. - TX 552   2004-04-04   
972-515 5 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2015-02-16   
972-515 6 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2014-06-19   
972-515 7 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2013-08-20   
972-515 8 Red Oak (Ovilla) TX RDOKTXHORS0  9533 SOUTHWESTERN BELL 552      
972-515 9 Red Oak (Ovilla) TX FRBRTXBLGTA  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2013-10-24   
972-516 A Plano TX PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-517 A Plano TX PLANTXXFDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-518 A Irving TX IRNGTXXGDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-519 A Plano TX PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-520 A Plano TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-520 0 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-05   
972-520 1 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 2 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 3 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 4 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 5 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 6 Plano TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 7 Plano TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-06-04   
972-520 8 Plano TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-06-04   
972-520 9 Plano TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-06-04   
972-521 A Allen EACS TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-521 0 Allen EACS TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-521 1 Allen EACS TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-04-26   
972-521 2 Allen EACS TX IRNGTXXBPSB  0701 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2014-04-21   

<< 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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 >>

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.