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
520-750 A Tucson AZ TCSNAZCRDS0  9636 QWEST CORPORATION 668      
520-750 0 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 1 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 2 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 3 Tucson AZ   6664 SPRINT SPECTRUM L.P. 668   2006-05-29   
520-750 4 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 5 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 6 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 7 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 8 Tucson AZ   9636 QWEST CORPORATION 668      
520-750 9 Tucson AZ   9636 QWEST CORPORATION 668      

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

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