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: FUTNCA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
657-278 A Fullerton CA 9740 PACIFIC BELL 730      
714-213 A Fullerton CA 9740 PACIFIC BELL 730      
714-278 A Fullerton CA 9740 PACIFIC BELL 730      
714-441 A Fullerton CA 9740 PACIFIC BELL 730      
714-446 A Fullerton CA 9740 PACIFIC BELL 730      
714-447 A Fullerton CA 9740 PACIFIC BELL 730      
714-449 A Fullerton CA 9740 PACIFIC BELL 730      
714-519 A Fullerton CA 9740 PACIFIC BELL 730      
714-525 A Fullerton CA 9740 PACIFIC BELL 730      
714-526 A Fullerton CA 9740 PACIFIC BELL 730      
714-578 A Fullerton CA 9740 PACIFIC BELL 730      
714-626 A Fullerton CA 9740 PACIFIC BELL 730      
714-680 A Fullerton CA 9740 PACIFIC BELL 730      
714-732 A Fullerton CA 9740 PACIFIC BELL 730      
714-738 A Fullerton CA 9740 PACIFIC BELL 730      
714-773 A Fullerton CA 9740 PACIFIC BELL 730      
714-870 A Fullerton CA 9740 PACIFIC BELL 730      
714-871 A Fullerton CA 9740 PACIFIC BELL 730      
714-879 A Fullerton CA 9740 PACIFIC BELL 730      
714-992 A Fullerton CA 9740 PACIFIC BELL 730      

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

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