Local Calling Guide

Area code/prefix search

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

NXX: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-436 A Gila Bend AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
928-436 0 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 1 Gila Bend AZ   624H ONVOY SPECTRUM, LLC 666   2021-10-21   
928-436 2 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 3 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 4 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 5 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 6 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 7 Gila Bend AZ   630E ONVOY, LLC - AZ 666      
928-436 8 Gila Bend AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2006-06-04   
928-436 9 Gila Bend AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666   2020-07-01   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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