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: BBLKCAXFDS0

Remotes:

Switch Switch name Switch type
BBCYCAXFRS3  BIG BEAR CITY  5ER 
RNSPCAXFRS2  RUNNING SPRINGS  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-866 A Big Bear Lake CA 4420 FRONTIER CALIFORNIA INC. 730      
909-878 A Big Bear Lake CA 4420 FRONTIER CALIFORNIA INC. 730      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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