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: 647

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-647 A Tucson AZ VAILAZNORS1  9636 QWEST CORPORATION 668      
520-647 0 Tucson AZ   9636 QWEST CORPORATION 668      
520-647 1 Tucson AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2009-09-30   
520-647 2 Tucson AZ   318J COMCAST IP PHONE, LLC 668   2006-10-31   
520-647 3 Tucson AZ   9636 QWEST CORPORATION 668      
520-647 4 Tucson AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2006-12-18   
520-647 5 Tucson AZ   7552 LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 668   2006-01-17   
520-647 6 Tucson AZ   6529 T-MOBILE USA, INC. 668   2007-04-21   
520-647 7 Tucson AZ   9636 QWEST CORPORATION 668      
520-647 8 Tucson AZ   7552 LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 668   2006-03-27   
520-647 9 Tucson AZ   318J COMCAST IP PHONE, LLC 668   2006-10-31   

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

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