Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 430 [Rate centres in NPA 430] [Dial plan for NPA 430]

NXX: 328

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-328 A Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552      
430-328 2 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2023-10-20   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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