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: 727

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-727 A Douglas AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-727 0 Douglas AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2005-10-15   
520-727 1 Douglas AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2013-06-25   
520-727 2 Douglas AZ   7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 668   2008-01-07   
520-727 3 Douglas AZ   630E ONVOY, LLC - AZ 668   2012-12-17   
520-727 4 Douglas AZ   630E ONVOY, LLC - AZ 668   2012-12-17   
520-727 5 Douglas AZ   630E ONVOY, LLC - AZ 668   2012-12-17   
520-727 6 Douglas AZ   630E ONVOY, LLC - AZ 668   2012-12-17   
520-727 7 Douglas AZ   630E ONVOY, LLC - AZ 668   2007-05-26   
520-727 8 Douglas AZ   630E ONVOY, LLC - AZ 668   2013-01-22   
520-727 9 Douglas AZ   630E ONVOY, LLC - AZ 668   2013-01-22   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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