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: DAVLCA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-314 A Danville CA 9740 PACIFIC BELL 722      
925-362 A Danville CA 9740 PACIFIC BELL 722      
925-552 A Danville CA 9740 PACIFIC BELL 722      
925-743 A Danville CA 9740 PACIFIC BELL 722      
925-820 A Danville CA 9740 PACIFIC BELL 722      
925-831 A Danville CA 9740 PACIFIC BELL 722      
925-837 A Danville CA 9740 PACIFIC BELL 722      
925-838 A Danville CA 9740 PACIFIC BELL 722      
925-855 A Danville CA 9740 PACIFIC BELL 722      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.