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.

NPA: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-251 A Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 0 Canoga Park CA SIMICACNGT1  6529 T-MOBILE USA, INC. 730   2002-12-08   
818-251 1 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 2 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 3 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 4 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 5 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 6 Canoga Park CA SIMICACNGT1  6529 T-MOBILE USA, INC. 730   2004-09-02   
818-251 7 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 8 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      
818-251 9 Canoga Park CA CNPKCA01DS0  9740 PACIFIC BELL 730      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.