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
520-616 A Tucson AZ MARNAZMARS1  9636 QWEST CORPORATION 668      
520-616 0 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 1 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 2 Tucson AZ   4793 XO ARIZONA, INC. 668   2006-03-24   
520-616 3 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 4 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 5 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 6 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 7 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 8 Tucson AZ   9636 QWEST CORPORATION 668      
520-616 9 Tucson AZ   9636 QWEST CORPORATION 668      

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

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