Local Calling Guide

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NPA: 928 [Rate centres in NPA 928] [Dial plan for NPA 928]

NXX: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-566 A Lake Havasu City AZ   612K CSC VOICE, LLC 666      
928-566 0 Lake Havasu City AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2015-11-14   
928-566 1 Lake Havasu City AZ   612K CSC VOICE, LLC 666   2007-03-06   
928-566 2 Lake Havasu City AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2013-09-27   
928-566 3 Lake Havasu City AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2006-10-23   
928-566 4 Lake Havasu City AZ   612K CSC VOICE, LLC 666   2005-06-02   
928-566 5 Lake Havasu City AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2007-09-25   
928-566 6 Lake Havasu City AZ PHNXAZMAXYX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666   2014-03-14   
928-566 7 Lake Havasu City AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2006-08-12   
928-566 8 Lake Havasu City AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2006-06-26   
928-566 9 Lake Havasu City AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2006-04-06   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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