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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
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   
972-953 8 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-13   
972-953 9 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2006-03-10   
972-954 A Allen TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
972-954 0 Allen TX DLLSTX97DSU  951G INTEGRATED PATH COMMUNICATIONS, LLC - TX 552   2014-09-20   
972-954 1 Allen TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2013-07-27   
972-954 2 Allen TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2014-10-31   
972-954 3 Allen TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-05-11   
972-954 4 Allen TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2014-10-03   
972-954 5 Allen TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2012-03-12   
972-954 6 Allen TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2014-12-03   
972-954 7 Allen TX RCSNTXHVBMD  516C AT&T CORP. 552   2006-06-30   
972-954 8 Allen TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2003-10-25   
972-954 9 Allen TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-12-19   
972-955 A Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-955 0 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-04-25   
972-955 1 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-04-25   
972-955 2 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-04-25   
972-955 3 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 4 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 5 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 6 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 7 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 8 Grand Prairie EMS TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 9 Grand Prairie EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2005-03-04   
972-956 A Lewisville TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-957 A Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 0 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 1 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 2 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 3 Irving TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2007-07-25   
972-957 4 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 5 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2023-01-15   
972-957 6 Irving TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-03-25   
972-957 7 Irving TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-03-21   
972-957 8 Irving TX IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-12-12   
972-957 9 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2019-07-12   
972-958 A McKinney TX XXXXXXXXXXX  MULT 552      
972-960 A Dallas TX DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-961 A Rockwall TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-961 0 Rockwall TX RKWLTXPADS0  9533 SOUTHWESTERN BELL 552   2007-02-09   

<< 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 >>

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.