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: 464

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-464 A Casa Grande AZ ELOYAZ01RS1  9636 QWEST CORPORATION 666      
520-464 0 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-464 1 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-464 2 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2008-05-31   
520-464 3 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-464 4 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2012-05-18   
520-464 5 Casa Grande AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-01-26   
520-464 6 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2008-05-19   
520-464 7 Casa Grande AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-01-26   
520-464 8 Casa Grande AZ   9636 QWEST CORPORATION 666      
520-464 9 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2013-09-14   

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

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