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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-412 2 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 3 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 4 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 5 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 6 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 7 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 8 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-412 9 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-04-06   
737-413 A Smithville TX   6529 T-MOBILE USA, INC. 558   2025-03-27   
737-413 0 Smithville TX   515J IP HORIZON LLC 558   2025-04-27   
737-413 1 Smithville TX   515J IP HORIZON LLC 558   2025-04-27   
737-413 7 Smithville TX   6529 T-MOBILE USA, INC. 558   2025-03-27   
737-413 8 Smithville TX   6529 T-MOBILE USA, INC. 558   2025-03-27   
737-413 9 Smithville TX   6529 T-MOBILE USA, INC. 558   2025-03-27   
737-414 A Buda TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558      
737-414 0 Buda TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2017-11-24   
737-414 1 Buda TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2017-11-24   
737-414 2 Buda TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2017-11-24   
737-414 3 Buda TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-12-18   
737-414 4 Buda TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-12-18   
737-414 5 Buda TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-12-18   
737-414 6 Buda TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-06-30   
737-414 7 Buda TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2018-04-22   
737-414 8 Buda TX AUSTTXGRX3Y  073H TELNYX LLC 558   2017-03-22   
737-414 9 Buda TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2016-12-17   
737-415 A Austin TX   515J IP HORIZON LLC 558   2025-04-25   
737-415 1 Austin TX   515J IP HORIZON LLC 558   2025-04-25   
737-415 2 Austin TX   515J IP HORIZON LLC 558   2025-04-25   
737-415 6 Austin TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2025-04-28   
737-416 A Elgin TX   515J IP HORIZON LLC 558   2025-04-25   
737-416 1 Elgin TX   515J IP HORIZON LLC 558   2025-04-25   
737-416 2 Elgin TX   515J IP HORIZON LLC 558   2025-04-25   
737-417 A Liberty Hill TX   515J IP HORIZON LLC 558   2025-05-25   
737-417 1 Liberty Hill TX   515J IP HORIZON LLC 558   2025-05-25   
737-417 2 Liberty Hill TX   515J IP HORIZON LLC 558   2025-05-25   
737-418 A Austin TX   903C ONVOY, LLC - TX 558   2025-05-30   
737-418 0 Austin TX   903C ONVOY, LLC - TX 558   2025-05-30   
737-418 1 Austin TX   903C ONVOY, LLC - TX 558   2025-05-30   
737-418 2 Austin TX   903C ONVOY, LLC - TX 558   2025-05-30   
737-418 3 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-06-02   
737-418 4 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-06-02   
737-418 5 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-06-02   
737-418 6 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-06-02   
737-418 7 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-06-02   
737-418 8 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-06-02   
737-418 9 Austin TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2025-06-02   
737-419 A Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 0 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 1 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 2 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 3 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 4 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 5 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 6 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 7 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 8 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-419 9 Austin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2025-06-16   
737-420 A Austin TX AUSTTXGR38Z  939H COMMIO, LLC 558      
737-420 0 Austin TX AUSTTXGR38Z  939H COMMIO, LLC 558   2022-01-06   
737-420 1 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 2 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 3 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 4 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 5 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 6 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 7 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 8 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-420 9 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-07   
737-421 A Rockdale TX   6529 T-MOBILE USA, INC. 558   2025-07-21   
737-421 1 Rockdale TX   793K TWC IP ENABLED SERVICES, LLC 558   2025-11-02   
737-421 8 Rockdale TX   6529 T-MOBILE USA, INC. 558   2025-07-21   
737-421 9 Rockdale TX   6529 T-MOBILE USA, INC. 558   2025-07-21   
737-422 A San Marcos TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2025-09-08   
737-422 6 San Marcos TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2025-09-08   
737-422 7 San Marcos TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2025-09-08   
737-422 8 San Marcos TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2025-09-08   
737-423 A Austin TX   700J WAVENATION, LLC 558   2025-09-12   
737-423 0 Austin TX   700J WAVENATION, LLC 558   2025-09-12   
737-424 A Bastrop TX   6529 T-MOBILE USA, INC. 558   2025-09-04   
737-424 9 Bastrop TX   6529 T-MOBILE USA, INC. 558   2025-09-04   
737-427 A McDade TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-427 0 McDade TX AUSTTXUH9MD  073H TELNYX LLC 558   2022-04-22   
737-427 2 McDade TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-427 3 McDade TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-427 4 McDade TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-427 5 McDade TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-427 6 McDade TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-02   
737-427 7 McDade TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-04-30   
737-427 8 McDade TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-427 9 McDade TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2023-12-25   
737-437 A Thorndale-Thrall TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-437 0 Thorndale-Thrall TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-04   
737-437 1 Thorndale-Thrall TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-04   
737-437 2 Thorndale-Thrall TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-437 3 Thorndale-Thrall TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-437 4 Thorndale-Thrall TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2025-01-23   
737-437 5 Thorndale-Thrall TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-437 6 Thorndale-Thrall TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-06   
737-437 7 Thorndale-Thrall TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-04-30   
737-437 8 Thorndale-Thrall TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-04-30   

<< 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 >>

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.