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: 488

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-488 A Porter Heights TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-488 0 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-10   
346-488 1 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-10   
346-488 2 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-09-06   
346-488 3 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-09-06   
346-488 4 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-09-06   
346-488 5 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2024-10-20   
346-488 6 Porter Heights TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-10   
346-488 7 Porter Heights TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2022-02-20   
346-488 8 Porter Heights TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-09-05   
346-488 9 Porter Heights TX HSTNTXYAHMD  073H TELNYX LLC 560   2021-03-28   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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