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: SNFCCASY5MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-671 8 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-12-28   
510-679 6 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-08-01   
510-695 2 Hayward CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-11-19   
510-698 6 Oakland: Fruitvale DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2001-07-24   
510-722 8 Crockett CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-12-31   
510-722 9 Crockett CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-08-09   
510-725 4 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2004-07-14   
510-727 5 Hayward CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-10-28   
510-735 0 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-07-20   
510-735 8 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-08   
510-746 8 Oakland: Trinidad DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-10-06   
510-764 A Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-764 1 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-764 2 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-764 4 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-764 6 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-764 9 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-768 7 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-08   
510-768 8 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-11-14   
510-771 8 Fremont-Newark: Oliver DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-01-15   
510-779 A El Sobrante-Pinole CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-779 0 El Sobrante-Pinole CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-779 3 El Sobrante-Pinole CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-779 5 El Sobrante-Pinole CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-08-10   
510-787 8 Crockett CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-12-13   
510-788 2 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-11-20   
510-788 8 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-06-16   
510-806 A Richmond CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-806 2 Richmond CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-07-31   
510-806 3 Richmond CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-07-31   
510-806 4 Richmond CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-07-31   
510-808 4 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-03-03   
510-808 6 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-02-27   
510-817 0 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-12-13   
510-817 2 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-11-04   
510-824 3 Fremont-Newark: Oliver DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2001-07-24   
510-824 5 Fremont-Newark: Oliver DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-01-13   
510-849 6 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-10-28   
510-856 5 Hayward CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-03-25   
510-857 5 Fremont-Newark: Main DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-11-03   
510-858 0 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-07-22   
510-860 A Richmond CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-860 4 Richmond CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-863 8 Oakland: Alameda DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-11-20   
510-867 2 Oakland: Main-Piedmont DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-03-10   
510-868 A Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-868 0 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-868 1 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-868 2 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-868 3 Oakland: Berkeley DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.