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: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-217 A Casa Grande AZ MRCPAZMADS0  9636 QWEST CORPORATION 666      
520-217 0 Casa Grande AZ   5562 METROPCS, INC. 666   2016-03-19   
520-217 1 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2016-04-22   
520-217 2 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2016-04-22   
520-217 3 Casa Grande AZ   9636 QWEST CORPORATION 666   2016-01-28   
520-217 4 Casa Grande AZ   9636 QWEST CORPORATION 666   2016-05-14   
520-217 5 Casa Grande AZ   9636 QWEST CORPORATION 666   2016-05-14   
520-217 6 Casa Grande AZ   5562 METROPCS, INC. 666   2017-05-01   
520-217 7 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2016-02-26   
520-217 8 Casa Grande AZ   630E ONVOY, LLC - AZ 666   2016-02-26   
520-217 9 Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2016-04-29   

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

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