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: 720

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-720 A Benson AZ BNSNAZSDDS0  9636 QWEST CORPORATION 668      
520-720 0 Benson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2005-06-17   
520-720 1 Benson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2015-03-09   
520-720 2 Benson AZ BNSNAZSDDS0  9636 QWEST CORPORATION 668      
520-720 3 Benson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2008-06-22   
520-720 4 Benson AZ BNSNAZSDDS0  9636 QWEST CORPORATION 668      
520-720 5 Benson AZ BNSNAZSDDS0  9636 QWEST CORPORATION 668      
520-720 6 Benson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2005-11-28   
520-720 7 Benson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2006-03-26   
520-720 8 Benson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2005-02-18   
520-720 9 Benson AZ BNSNAZSDDS0  9636 QWEST CORPORATION 668      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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