Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 313

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-313 A Austin TX AUSTTXGR62Z  490J DISH WIRELESS, LLC 558      
737-313 0 Austin TX   903C ONVOY, LLC - TX 558   2022-02-28   
737-313 1 Austin TX   903C ONVOY, LLC - TX 558   2022-02-28   
737-313 2 Austin TX   073H TELNYX LLC 558   2022-11-09   
737-313 3 Austin TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2022-11-09   
737-313 4 Austin TX   903C ONVOY, LLC - TX 558   2022-12-13   
737-313 5 Austin TX   903C ONVOY, LLC - TX 558   2022-12-13   
737-313 6 Austin TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2023-01-11   
737-313 7 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2023-01-11   
737-313 8 Austin TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2023-02-05   
737-313 9 Austin TX   490J DISH WIRELESS, LLC 558   2022-02-27   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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