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: 463

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-463 A Whitlow AZ WHTLAZMADS0  9636 QWEST CORPORATION 666      
520-463 0 Whitlow AZ   9636 QWEST CORPORATION 666      
520-463 1 Whitlow AZ   9636 QWEST CORPORATION 666      
520-463 2 Whitlow AZ   9636 QWEST CORPORATION 666      
520-463 3 Whitlow AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2013-04-21   
520-463 4 Whitlow AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2006-08-07   
520-463 7 Whitlow AZ   630E ONVOY, LLC - AZ 666   2007-05-25   
520-463 9 Whitlow AZ   593K MCC TELEPHONY LLC 666   2011-02-18   

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

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