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: LKARCAABRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-259 A Chester CA 2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-259 0 Chester CA 2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-259 2 Chester CA 2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-259 3 Chester CA 2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-259 4 Chester CA 2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      
530-259 5 Chester CA 2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 724      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.