Local Calling Guide

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

NXX: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-406 A Winslow AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
928-406 0 Winslow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2021-07-05   
928-406 1 Winslow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2021-07-05   
928-406 3 Winslow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2021-08-08   
928-406 4 Winslow AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2021-08-08   
928-406 5 Winslow AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-01-19   
928-406 6 Winslow AZ PHNXAZ197MD  939H COMMIO, LLC 666   2022-09-05   
928-406 7 Winslow AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2024-03-15   
928-406 8 Winslow AZ   515J IP HORIZON LLC 666   2021-09-26   
928-406 9 Winslow AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666   2021-07-02   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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