Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM

<< 1 2

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
928-810 4 Window Rock AZ STMCAZXEDS0  980      
928-810 5 Window Rock AZ STMCAZXEDS0  980      
928-810 7 Window Rock AZ STMCAZXEDS0  980      
928-810 8 Window Rock AZ STMCAZXEDS0  980      
928-815 A Window Rock AZ STMCAZXEPS1  980      
928-815 4 Window Rock AZ STMCAZXEPS1  980   2011-04-02   
928-871 A Window Rock AZ STMCAZXEDS0  980      

<< 1 2

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.