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
972-940 0 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2017-04-07   
972-940 1 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2017-04-07   
972-940 2 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2017-04-07   
972-940 3 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2017-07-25   
972-940 4 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2017-04-07   
972-940 5 Dallas TX DLLTTXID1MD  5562 METROPCS, INC. 552   2017-07-25   
972-940 6 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552   2017-02-23   
972-940 7 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552   2017-02-23   
972-940 8 Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2017-09-08   
972-940 9 Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2017-09-08   
972-941 A Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 0 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 1 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-03-04   
972-941 2 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 3 Plano TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-04-15   
972-941 4 Plano TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-04-15   
972-941 5 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 6 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 7 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 8 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-941 9 Plano TX PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-942 A Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-942 0 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2018-07-15   
972-942 1 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2018-07-15   
972-942 2 Dallas TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2018-05-29   
972-942 3 Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-05-29   
972-942 4 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2018-05-29   
972-942 5 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2018-05-29   
972-942 6 Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-05-28   
972-942 7 Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-07-16   
972-942 8 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
972-942 9 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2018-07-15   
972-943 A Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-944 A Dallas TX DLLSTXRIXRZ  839J EON TELECOM, INC. 552   2024-02-05   
972-944 0 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-02-25   
972-944 1 Dallas TX DLLSTXRIXRZ  839J EON TELECOM, INC. 552   2024-02-05   
972-944 2 Dallas TX DLLSTXRIXRZ  839J EON TELECOM, INC. 552   2024-02-05   
972-944 3 Dallas TX DLLSTXRIXRZ  839J EON TELECOM, INC. 552   2024-02-05   
972-944 4 Dallas TX DLLSTXRIXRZ  839J EON TELECOM, INC. 552   2024-02-05   
972-944 5 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-02-25   
972-944 6 Dallas TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2024-03-25   
972-944 7 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-04-15   
972-944 8 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-02-25   
972-944 9 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-02-25   
972-945 A Josephine TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552      
972-945 0 Josephine TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2019-06-27   
972-945 1 Josephine TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2019-09-14   
972-945 2 Josephine TX DLLSTX97X1X  073H TELNYX LLC 552   2019-09-21   
972-945 3 Josephine TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2018-11-15   
972-945 4 Josephine TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-945 5 Josephine TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-945 6 Josephine TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-945 7 Josephine TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-945 8 Josephine TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-945 9 Josephine TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-02-10   
972-946 A Grand Prairie TX DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
972-946 0 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-01-08   
972-946 1 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-09-23   
972-946 2 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-01-08   
972-946 3 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-09-23   
972-946 4 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-01-08   
972-946 5 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-09-23   
972-946 6 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-09-23   
972-946 7 Grand Prairie TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2016-01-08   
972-946 8 Grand Prairie TX DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
972-946 9 Grand Prairie TX DLLTTXID1MD  5562 METROPCS, INC. 552   2014-12-16   
972-947 A Dallas Fort Worth Airport TX DFIATXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-947 0 Dallas Fort Worth Airport TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2012-06-01   
972-947 1 Dallas Fort Worth Airport TX DFIATXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-947 2 Dallas Fort Worth Airport TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2016-04-22   
972-947 3 Dallas Fort Worth Airport TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-05-04   
972-947 4 Dallas Fort Worth Airport TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-04-21   
972-947 5 Dallas Fort Worth Airport TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2012-06-01   
972-947 6 Dallas Fort Worth Airport TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2012-06-01   
972-947 7 Dallas Fort Worth Airport TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
972-947 8 Dallas Fort Worth Airport TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2012-06-01   
972-947 9 Dallas Fort Worth Airport TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2014-10-14   
972-948 A Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-949 A Grand Prairie EMS TX DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
972-951 A Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-951 0 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-01-21   
972-951 1 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-01-21   
972-951 2 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-01-21   
972-951 3 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-01-21   
972-951 4 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-01-21   
972-951 5 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-01-21   
972-951 6 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-13   
972-951 7 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-13   
972-951 8 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-03-10   
972-951 9 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2004-09-16   
972-952 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-953 A Irving EMS TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-953 0 Irving EMS TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-953 1 Irving EMS TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-953 2 Irving EMS TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-953 3 Irving EMS TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-953 4 Irving EMS TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-953 5 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-13   
972-953 6 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-13   
972-953 7 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-13   

<< 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: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.