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: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-307 A Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-307 0 Bertram TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2021-08-21   
737-307 1 Bertram TX   903C ONVOY, LLC - TX 558   2021-04-30   
737-307 2 Bertram TX   903C ONVOY, LLC - TX 558   2021-09-26   
737-307 3 Bertram TX   624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-307 4 Bertram TX   903C ONVOY, LLC - TX 558   2021-10-28   
737-307 5 Bertram TX   624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-307 6 Bertram TX   624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-307 7 Bertram TX   903C ONVOY, LLC - TX 558   2021-03-14   
737-307 8 Bertram TX   903C ONVOY, LLC - TX 558   2021-03-14   
737-307 9 Bertram TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2021-03-28   

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

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