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: 494

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-494 A Casa Grande AZ AZCYAZ03RS1  9636 QWEST CORPORATION 666      
520-494 0 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-494 1 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-494 2 Casa Grande AZ   9636 QWEST CORPORATION 666   2006-08-09   
520-494 3 Casa Grande AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2006-06-16   
520-494 4 Casa Grande AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2008-06-18   
520-494 5 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-494 6 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-494 7 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-494 8 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-494 9 Casa Grande AZ   9636 QWEST CORPORATION 666      

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

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