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: 867

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-867 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-867 0 Tucson AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-867 1 Tucson AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-867 2 Tucson AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2006-03-06   
520-867 3 Tucson AZ   6529 T-MOBILE USA, INC. 668   2013-10-03   
520-867 4 Tucson AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2013-07-28   
520-867 5 Tucson AZ   6529 T-MOBILE USA, INC. 668   2005-10-30   
520-867 6 Tucson AZ   318J COMCAST IP PHONE, LLC 668   2005-02-14   
520-867 7 Tucson AZ   318J COMCAST IP PHONE, LLC 668   2005-02-14   
520-867 8 Tucson AZ   318J COMCAST IP PHONE, LLC 668   2005-02-14   
520-867 9 Tucson AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2013-07-28   

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

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