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: 913

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-913 A Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2026-02-07   
346-913 0 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2026-02-07   
346-913 1 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-02-09   
346-913 2 Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2026-02-09   
346-913 7 Tomball TX HSTNTXYAHMD  073H TELNYX LLC 560   2026-07-17   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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