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: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-455 A Nogales AZ PTGNAZELRS1  9636 QWEST CORPORATION 668      
520-455 0 Nogales AZ   9636 QWEST CORPORATION 668      
520-455 1 Nogales AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-04-12   
520-455 2 Nogales AZ   5562 METROPCS, INC. 668   2007-03-08   
520-455 3 Nogales AZ   630E ONVOY, LLC - AZ 668   2006-01-08   
520-455 4 Nogales AZ   9636 QWEST CORPORATION 668      
520-455 5 Nogales AZ   9636 QWEST CORPORATION 668      
520-455 6 Nogales AZ   630E ONVOY, LLC - AZ 668   2021-08-08   
520-455 7 Nogales AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-01-23   
520-455 8 Nogales AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2008-01-23   
520-455 9 Nogales AZ   9636 QWEST CORPORATION 668      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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