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: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-393 A Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 0 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 1 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 2 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 3 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2003-10-20   
520-393 4 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 5 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 6 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 7 Tucson AZ GNVYAZMADS0  9636 QWEST CORPORATION 668      
520-393 8 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2003-10-20   
520-393 9 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2006-04-10   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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