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: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-397 A Nogales AZ NGLSAZMARS1  9636 QWEST CORPORATION 668      
520-397 0 Nogales AZ   9636 QWEST CORPORATION 668      
520-397 1 Nogales AZ   9636 QWEST CORPORATION 668      
520-397 2 Nogales AZ   9636 QWEST CORPORATION 668      
520-397 3 Nogales AZ   630E ONVOY, LLC - AZ 668   2020-03-30   
520-397 4 Nogales AZ   6529 T-MOBILE USA, INC. 668   2007-10-15   
520-397 5 Nogales AZ   9636 QWEST CORPORATION 668      
520-397 7 Nogales AZ   9636 QWEST CORPORATION 668      
520-397 8 Nogales AZ   9636 QWEST CORPORATION 668      
520-397 9 Nogales AZ   9636 QWEST CORPORATION 668      

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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