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: 838

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-838 A Highlands TX HSTNTXJAX7Z  0051 SHELCOMM 560   2024-11-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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