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

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-218 A Bakersfield: North DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-348 A Bakersfield: Main DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-454 A Delano CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-469 A Buttonwillow CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-501 A Bakersfield: South DA CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-630 A Shafter CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-745 A Taft CA 337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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