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: 838

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-838 A Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-838 0 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2008-02-29   
520-838 1 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2006-03-20   
520-838 2 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-838 3 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-838 4 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2006-12-16   
520-838 5 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-838 6 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-838 7 Tucson AZ TCSNAZMADS1  9636 QWEST CORPORATION 668      
520-838 8 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2005-08-11   
520-838 9 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2008-07-25   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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