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: BKFDCAKTX6X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-655 A Arvin CA 965H FRACTEL, LLC 734      
661-677 A Bakersfield: North DA CA 965H FRACTEL, LLC 734      
661-688 A Bakersfield: Main DA CA 965H FRACTEL, LLC 734      
661-732 A Delano CA 965H FRACTEL, LLC 734      
661-788 A Bakersfield: South DA CA 965H FRACTEL, LLC 734      
661-866 A Bakersfield: Main DA CA 965H FRACTEL, LLC 734      
661-922 A Delano CA 965H FRACTEL, LLC 734      
661-933 A Bakersfield: North DA CA 965H FRACTEL, LLC 734      
661-955 A Arvin CA 965H FRACTEL, LLC 734      

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

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