Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 804

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-804 A Brownsville TX HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-804 0 Brownsville TX   939H COMMIO, LLC 568   2024-02-23   
956-804 1 Brownsville TX   939H COMMIO, LLC 568   2024-02-23   
956-804 2 Brownsville TX   939H COMMIO, LLC 568   2024-02-23   
956-804 3 Brownsville TX   903C ONVOY, LLC - TX 568   2024-03-09   
956-804 4 Brownsville TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2024-06-16   
956-804 5 Brownsville TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2024-06-16   
956-804 6 Brownsville TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2024-08-10   
956-804 7 Brownsville TX   903C ONVOY, LLC - TX 568   2024-02-24   
956-804 8 Brownsville TX   903C ONVOY, LLC - TX 568   2024-02-24   
956-804 9 Brownsville TX   903C ONVOY, LLC - TX 568   2024-02-24   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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