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: BKLYCA01DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-204 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-229 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-229 1 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-486 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-540 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-548 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 0 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 1 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 2 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 3 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 4 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 5 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 8 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-549 9 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-644 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-841 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-843 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 0 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 1 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 2 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 3 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 4 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 5 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 8 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-849 9 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 A Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 0 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 1 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 2 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 5 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 6 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 7 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      
510-883 9 Oakland: Berkeley DA CA 9740 PACIFIC BELL 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.