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: BKFDCA19DS0

Remotes:

Switch Switch name Switch type
BKFDCA15RS0  BAKERSFIELD  5ER 
FZPKCA11RS0  FRAZIER PARK  5ER 
LEBCCA11RS0  LEBEC  5ER 
LEBCCA12RS0  FRAZER PARK  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-412 5 Bakersfield: South DA CA 9740 PACIFIC BELL 734   2008-11-10   
661-412 6 Bakersfield: South DA CA 9740 PACIFIC BELL 734   2009-02-16   
661-473 5 Bakersfield: South DA CA 9740 PACIFIC BELL 734   2013-10-01   
661-473 6 Bakersfield: South DA CA 9740 PACIFIC BELL 734   2013-10-01   
661-473 8 Bakersfield: South DA CA 9740 PACIFIC BELL 734   2013-10-01   
661-529 4 Bakersfield: South DA CA 9740 PACIFIC BELL 734   2012-09-23   
661-654 A Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 0 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 2 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 3 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 4 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 5 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 6 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 7 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-654 8 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-663 A Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-664 A Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 A Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 0 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 1 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 2 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 3 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 4 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 5 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 7 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 8 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-665 9 Bakersfield: South DA CA 9740 PACIFIC BELL 734      
661-858 0 Bakersfield: South DA CA 9740 PACIFIC BELL 734      

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.