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: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-424 A Virden NM TCSNAZMAVMD  5470 LEVEL 3 COMMUNICATIONS, LLC - NM 668      
575-424 2 Virden NM TCSNAZMAVMD  5470 LEVEL 3 COMMUNICATIONS, LLC - NM 668   2012-04-29   
575-424 4 Virden NM   145J TERRA NOVA TELECOM INC. 668   2025-07-06   

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

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