Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 928 [Rate centres in NPA 928] [Dial plan for NPA 928]

NXX: 815

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-815 A Window Rock AZ STMCAZXEPS1  4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-815 4 Window Rock AZ STMCAZXEPS1  4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980   2011-04-02   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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