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: 225

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-225 A Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 0 Tucson AZ TCSNAZEA5MD  7184 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - AZ 668   2005-04-30   
520-225 1 Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 2 Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 3 Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 4 Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 5 Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 6 Tucson AZ TCSNAZNODS0  9636 QWEST CORPORATION 668      
520-225 7 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2005-06-02   
520-225 8 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2005-06-04   
520-225 9 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2005-06-24   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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