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: BREACA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
714-255 A Brea CA 9740 PACIFIC BELL 730      
714-256 A Brea CA 9740 PACIFIC BELL 730      
714-257 A Brea CA 9740 PACIFIC BELL 730      
714-529 A Brea CA 9740 PACIFIC BELL 730      
714-671 A Brea CA 9740 PACIFIC BELL 730      
714-672 A Brea CA 9740 PACIFIC BELL 730      
714-674 A Brea CA 9740 PACIFIC BELL 730      
714-990 A Brea CA 9740 PACIFIC BELL 730      

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

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