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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-443 0 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2016-08-15   
737-443 1 Austin TX   515J IP HORIZON LLC 558   2016-08-13   
737-443 2 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2016-08-14   
737-443 3 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2016-08-14   
737-443 4 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2016-08-14   
737-443 5 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-08-14   
737-443 6 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-08-14   
737-443 7 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2016-08-15   
737-443 8 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2016-09-22   
737-443 9 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2017-09-28   
737-444 A Georgetown TX AUSTTXGRDS3  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 558      
737-444 0 Georgetown TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2014-03-27   
737-444 1 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-08-21   
737-444 2 Georgetown TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2014-09-14   
737-444 3 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-09-11   
737-444 4 Georgetown TX AUSTTXGRDS3  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 558   2013-07-01   
737-444 5 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-11-07   
737-444 6 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-11-07   
737-444 7 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-11-07   
737-444 8 Georgetown TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2015-02-14   
737-444 9 Georgetown TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2014-03-27   
737-465 A Austin TX AUSTTXGR51Z  965H FRACTEL, LLC 558      
737-465 0 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2019-08-31   
737-465 1 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2019-08-31   
737-465 2 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2019-08-31   
737-465 3 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2019-08-31   
737-465 4 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2019-08-23   
737-465 5 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2019-08-23   
737-465 6 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2019-08-23   
737-465 7 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2019-08-31   
737-465 8 Austin TX   965H FRACTEL, LLC 558   2019-07-17   
737-465 9 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2019-08-31   
737-471 A Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
737-471 0 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 1 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 2 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 3 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 4 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 5 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 6 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-04-26   
737-471 7 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558   2018-04-21   
737-471 8 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558   2018-04-21   
737-471 9 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-07-15   
737-473 A San Gabriel TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-473 0 San Gabriel TX AUSTTXUH9MD  073H TELNYX LLC 558   2022-06-06   
737-473 1 San Gabriel TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-04-30   
737-473 2 San Gabriel TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-473 3 San Gabriel TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-473 4 San Gabriel TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-473 6 San Gabriel TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-17   
737-473 7 San Gabriel TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-473 8 San Gabriel TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-477 A Lockhart TX AUSTTXGR51Z  965H FRACTEL, LLC 558      
737-477 0 Lockhart TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2020-09-25   
737-477 1 Lockhart TX AUSTTXGR42Z  073H TELNYX LLC 558   2021-06-03   
737-477 2 Lockhart TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-14   
737-477 3 Lockhart TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-477 4 Lockhart TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2024-08-29   
737-477 5 Lockhart TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2020-11-22   
737-477 6 Lockhart TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2020-11-22   
737-477 7 Lockhart TX AUSTTXGR51Z  965H FRACTEL, LLC 558   2020-09-05   
737-477 8 Lockhart TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-14   
737-477 9 Lockhart TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-10-09   
737-484 A Austin TX AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-484 0 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2015-08-31   
737-484 1 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2015-08-31   
737-484 2 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2015-09-18   
737-484 3 Austin TX AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2015-08-21   
737-484 4 Austin TX AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2015-09-14   
737-484 5 Austin TX AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2015-09-14   
737-484 6 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2015-09-18   
737-484 7 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2015-09-18   
737-484 8 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2015-09-24   
737-484 9 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2015-09-24   
737-497 A Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-497 0 Austin TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2023-07-09   
737-497 1 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-05-18   
737-497 2 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-05-18   
737-497 3 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-03-13   
737-497 4 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-03-13   
737-497 5 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-05-18   
737-497 6 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-05-18   
737-497 7 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-04-28   
737-497 8 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-04-28   
737-497 9 Austin TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2023-07-09   
737-500 A Bastrop TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-500 0 Bastrop TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-09-22   
737-500 1 Bastrop TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2019-11-21   
737-500 2 Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2020-02-17   
737-500 3 Bastrop TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2019-10-05   
737-500 4 Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2020-02-17   
737-500 5 Bastrop TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-09-22   
737-500 6 Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2019-10-18   
737-500 7 Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2019-10-18   
737-500 8 Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2019-10-18   
737-500 9 Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2019-10-18   
737-510 A Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-510 0 Bertram TX AUSTTXGRX3Y  073H TELNYX LLC 558   2019-12-13   
737-510 1 Bertram TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-03-08   
737-510 2 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2020-08-15   

<< 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 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.