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: BKFDCA17DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-213 3 Bakersfield: North DA CA 9740 PACIFIC BELL 734   2004-09-20   
661-213 4 Bakersfield: North DA CA 9740 PACIFIC BELL 734   2004-09-20   
661-387 6 Bakersfield: North DA CA 9740 PACIFIC BELL 734      
661-587 A Bakersfield: North DA CA 9740 PACIFIC BELL 734      
661-588 A Bakersfield: North DA CA 9740 PACIFIC BELL 734      
661-589 A Bakersfield: North DA CA 9740 PACIFIC BELL 734      
661-829 A Bakersfield: North DA CA 9740 PACIFIC BELL 734      
661-829 1 Bakersfield: North DA CA 9740 PACIFIC BELL 734   2004-03-08   
661-829 2 Bakersfield: North DA CA 9740 PACIFIC BELL 734   2004-02-20   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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