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: OKLDCAEBDS0

1 2 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-462 A Sunnyvale CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-462 3 Sunnyvale CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2009-11-13   
408-462 4 Sunnyvale CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2009-11-13   
408-465 A Morgan Hill CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-465 1 Morgan Hill CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-603 A Campbell CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-603 2 Campbell CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-634 A San Martin CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-634 1 San Martin CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-660 A San Jose: West DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-660 1 San Jose: West DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-660 2 San Jose: West DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-660 4 San Jose: West DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-702 A Sunnyvale CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-702 1 Sunnyvale CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-702 3 Sunnyvale CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-780 7 San Jose: West DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2012-07-14   
408-833 A San Jose: South DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-833 1 San Jose: South DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-834 A San Jose: North DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-834 1 San Jose: North DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-843 A Gilroy CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-843 2 Gilroy CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
408-913 4 Saratoga CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2012-03-05   
415-324 A Sausalito CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-324 1 Sausalito CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-325 A San Francisco: Juniper DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-325 1 San Francisco: Juniper DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-418 A San Francisco: Montrose-Evergreen DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-418 1 San Francisco: Montrose-Evergreen DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-432 3 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2012-03-23   
415-489 A San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 1 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 2 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 3 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 4 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 5 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 6 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 7 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 9 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-493 A Novato CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-493 1 Novato CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-496 A Corte Madera CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-496 3 Corte Madera CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-510 A San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-510 5 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2015-01-22   
415-510 6 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2015-02-01   
415-524 A San Rafael CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-524 1 San Rafael CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-527 A San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-527 2 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2012-07-13   
415-549 A San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-549 2 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2013-05-06   
415-580 4 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2012-06-14   
415-691 A Belvedere CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-691 3 Belvedere CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-780 8 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-01-28   
415-787 A Point Reyes CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-787 1 Point Reyes CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-842 5 Ignacio CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-06-12   
415-852 7 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2011-04-23   
415-872 A San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-872 3 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-07-17   
415-997 A Nicasio CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-997 1 Nicasio CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-227 A Oakland: Alameda DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-227 3 Oakland: Alameda DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-240 A Fremont-Newark: Greenleaf DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-240 3 Fremont-Newark: Greenleaf DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-253 A Richmond CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-253 1 Richmond CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-361 A Hayward CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-361 5 Hayward CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-12-11   
510-379 A Oakland: Main-Piedmont DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-379 1 Oakland: Main-Piedmont DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-379 2 Oakland: Main-Piedmont DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-379 3 Oakland: Main-Piedmont DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-463 8 Oakland: Main-Piedmont DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2011-01-28   
510-467 A Oakland: Fruitvale DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-467 1 Oakland: Fruitvale DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-512 1 Hayward CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-512 7 Hayward CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-725 A Oakland: Berkeley DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-725 3 Oakland: Berkeley DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-851 7 Oakland: Main-Piedmont DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2015-01-13   
510-854 3 El Sobrante-Pinole CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2009-07-02   
510-897 7 Fremont-Newark: Oliver DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2002-09-17   
510-943 A Fremont-Newark: Main DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-943 1 Fremont-Newark: Main DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-969 A Oakland: Trinidad DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-969 1 Oakland: Trinidad DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-969 3 Oakland: Trinidad DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
628-220 7 San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2016-06-06   
650-204 A Millbrae CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-204 2 Millbrae CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-276 A Half Moon Bay CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-276 1 Half Moon Bay CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-297 A Pescadero CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-297 1 Pescadero CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-308 7 Palo Alto CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2011-05-14   

1 2 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.