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.

Switch: BLCYAZXCDS0

Remotes:

Switch Switch name Switch type
BLCYAZXERS1  BULLHEAD CITY  RSC 
MHVYAZXCRS0  MOHAVE VALLEY  RSS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
928-219 3 Bullhead City AZ 2172 CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL 666   2008-09-20   
928-444 1 Bullhead City AZ 2172 CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL 666   2005-06-27   
928-704 A Bullhead City AZ 2172 CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL 666      
928-758 A Bullhead City AZ 2172 CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL 666      
928-763 A Bullhead City AZ 2172 CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL 666      

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

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