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: 937

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-937 A Martindale TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558      
737-937 0 Martindale TX   073H TELNYX LLC 558   2022-07-23   
737-937 1 Martindale TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2022-06-24   
737-937 2 Martindale TX   624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-937 3 Martindale TX   624H ONVOY SPECTRUM, LLC 558   2021-12-26   
737-937 4 Martindale TX   624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-937 5 Martindale TX   903C ONVOY, LLC - TX 558   2021-04-30   
737-937 6 Martindale TX   903C ONVOY, LLC - TX 558   2021-03-14   
737-937 7 Martindale TX   903C ONVOY, LLC - TX 558   2021-03-14   
737-937 8 Martindale TX   903C ONVOY, LLC - TX 558   2021-04-30   
737-937 9 Martindale TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2021-04-18   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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