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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-309 A Austin TX AUSTTXGR67Z  475J CALLWORKS CORPORATION 558      
737-309 0 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-01-01   
737-309 1 Austin TX AUSTTXGR67Z  475J CALLWORKS CORPORATION 558   2021-12-31   
737-309 2 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-01-08   
737-309 3 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-01-08   
737-309 4 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-02-03   
737-309 5 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-02-03   
737-309 6 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-01   
737-309 7 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-01   
737-309 8 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-01   
737-309 9 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2022-01-01   

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

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