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: BKFDCA13DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-871 A Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-872 A Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 A Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 0 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 1 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 2 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 6 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 7 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 8 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      
661-873 9 Bakersfield: Main DA CA 9740 PACIFIC BELL 734      

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

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