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: OKLDCA03DS4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-208 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-267 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 0 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 1 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 2 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 3 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 4 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 5 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 7 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 8 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-268 9 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-271 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 0 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 1 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 2 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 3 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 4 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 5 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 6 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-272 9 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-465 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-625 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-645 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-663 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-763 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-839 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 A Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 0 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 2 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 3 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 4 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 5 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 6 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 7 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 8 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      
510-891 9 Oakland: Main-Piedmont DA CA 9740 PACIFIC BELL 722      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.