Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-509 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-509 0 Houston TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-11   
346-509 1 Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2022-01-26   
346-509 2 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-18   
346-509 3 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-18   
346-509 4 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-08   
346-509 5 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-08   
346-509 6 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-08   
346-509 7 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-08   
346-509 8 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-11-08   
346-509 9 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2023-01-15   

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

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