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: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-230 A Roswell NM   206F ONVOY, LLC - NM 664      
575-230 0 Roswell NM   145J TERRA NOVA TELECOM INC. 664   2026-02-19   
575-230 1 Roswell NM   206F ONVOY, LLC - NM 664      
575-230 8 Roswell NM   123F BANDWIDTH.COM CLEC, LLC - NM 664   2026-06-06   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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