Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-438 A Las Cruces NM   883K AHOI LLC 664   2026-03-02   
575-438 2 Las Cruces NM   883K AHOI LLC 664   2026-03-02   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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