Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-264 A Nogales AZ TCSNAZMATMD  7421 AT&T LOCAL 668      
520-264 2 Nogales AZ   7421 AT&T LOCAL 668      
520-264 6 Nogales AZ   6664 SPRINT SPECTRUM L.P. 668   2005-10-02   
520-264 8 Nogales AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-07-24   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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