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: BKFECANDGT0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-745 4 Taft CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2007-07-26   
661-745 5 Taft CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2013-12-08   
661-748 1 Bakersfield: Main DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2012-07-26   
661-759 5 Wasco CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2018-01-05   
661-771 7 Tehachapi CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2014-04-28   
661-778 0 Delano CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2007-07-26   
661-792 4 McFarland CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2007-07-26   
661-823 4 Tehachapi CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2007-07-26   
661-829 5 Bakersfield: North DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2008-08-18   
661-829 6 Bakersfield: North DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2010-05-07   
661-829 7 Bakersfield: North DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2011-05-19   
661-836 5 Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2008-08-16   
661-843 7 Bakersfield: Main DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2011-07-28   
661-847 9 Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2011-07-28   
661-864 7 Bakersfield: Main DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2010-06-28   
661-873 4 Bakersfield: Main DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2008-11-10   
661-885 6 Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2018-05-27   
661-885 7 Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2017-11-19   
661-885 8 Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2017-09-03   
661-885 9 Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2017-06-04   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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