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.
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Switch: RHRKAZXCRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
928-728 A Rough Rock AZ 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-728 0 Rough Rock AZ 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-728 1 Rough Rock AZ 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-728 3 Rough Rock AZ 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-728 5 Rough Rock AZ 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      
928-728 9 Rough Rock AZ 4449 NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM 980      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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