Local Calling Guide

Area code/prefix search

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Fort Defiance, AZ

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
928-729 A FTDFAZXCRS0  4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-730 A STMCAZXE5MD  5736 COMMNET WIRELESS, LLC 980      
928-730 0 STMCAZXE5MD  5736 COMMNET WIRELESS, LLC 980   2014-07-28   
928-730 1 STMCAZXE5MD  5736 COMMNET WIRELESS, LLC 980   2014-09-03   
928-730 2 STMCAZXE5MD  5736 COMMNET WIRELESS, LLC 980   2016-02-25   
928-730 3 STMCAZXEXMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 980   2020-03-27   
928-730 5 STMCAZXE6MD  6010 NEW CINGULAR WIRELESS PCS, LLC 980   2023-10-17   
928-730 6 STMCAZXE6MD  6010 NEW CINGULAR WIRELESS PCS, LLC 980   2023-10-17   
928-730 7 STMCAZXE7MD  073H TELNYX LLC 980   2022-07-29   
928-730 8 STMCAZXE6MD  6010 NEW CINGULAR WIRELESS PCS, LLC 980   2021-10-22   
928-730 9 STMCAZXE5MD  5736 COMMNET WIRELESS, LLC 980   2012-03-01   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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