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: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-531 A Columbus NM ANMSNMXCDS0  2176 VALLEY TEL COOP INC 664      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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