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: WNCKCA11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-210 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-274 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-279 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-280 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-295 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-296 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-472 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-817 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-817 1 Walnut Creek CA 9740 PACIFIC BELL 722      
925-817 3 Walnut Creek CA 9740 PACIFIC BELL 722      
925-817 4 Walnut Creek CA 9740 PACIFIC BELL 722      
925-817 5 Walnut Creek CA 9740 PACIFIC BELL 722      
925-817 6 Walnut Creek CA 9740 PACIFIC BELL 722      
925-906 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-926 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-927 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-933 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-937 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-938 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-939 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 0 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 1 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 2 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 3 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 4 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 5 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 6 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 7 Walnut Creek CA 9740 PACIFIC BELL 722      
925-941 9 Walnut Creek CA 9740 PACIFIC BELL 722      
925-942 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-974 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-975 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 0 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 1 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 2 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 3 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 4 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 6 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 7 Walnut Creek CA 9740 PACIFIC BELL 722      
925-979 9 Walnut Creek CA 9740 PACIFIC BELL 722      
925-988 A Walnut Creek CA 9740 PACIFIC BELL 722      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.