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: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-375 A Rockdale TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558      
737-375 0 Rockdale TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-11-26   
737-375 1 Rockdale TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-11-26   
737-375 2 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-09-08   
737-375 3 Rockdale TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-08-01   
737-375 5 Rockdale TX AUSTTXUH9MD  073H TELNYX LLC 558   2022-09-11   
737-375 6 Rockdale TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2022-07-11   
737-375 7 Rockdale TX AUSTTXGREMD  939H COMMIO, LLC 558   2021-11-18   
737-375 8 Rockdale TX AUSTTXGREMD  939H COMMIO, LLC 558   2021-11-18   
737-375 9 Rockdale TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2021-08-02   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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