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: 912

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-912 A Alvin TX   903C ONVOY, LLC - TX 560   2026-02-07   
346-912 0 Alvin TX   903C ONVOY, LLC - TX 560   2026-02-07   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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