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: CNCRCA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-246 A Concord CA 9740 PACIFIC BELL 722      
925-363 A Concord CA 9740 PACIFIC BELL 722      
925-521 A Concord CA 9740 PACIFIC BELL 722      
925-602 A Concord CA 9740 PACIFIC BELL 722      
925-609 A Concord CA 9740 PACIFIC BELL 722      
925-677 A Concord CA 9740 PACIFIC BELL 722      
925-687 A Concord CA 9740 PACIFIC BELL 722      
925-688 A Concord CA 9740 PACIFIC BELL 722      
925-689 A Concord CA 9740 PACIFIC BELL 722      
925-691 A Concord CA 9740 PACIFIC BELL 722      
925-692 A Concord CA 9740 PACIFIC BELL 722      
925-798 A Concord CA 9740 PACIFIC BELL 722      
925-808 A Concord CA 9740 PACIFIC BELL 722      
925-825 A Concord CA 9740 PACIFIC BELL 722      
925-969 A Concord CA 9740 PACIFIC BELL 722      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.