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
650-461 4 Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-12-24   
650-461 8 Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-07-18   
650-461 9 Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-07-18   
650-466 7 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-10-29   
650-472 A Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 0 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 1 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 2 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 3 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 4 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 6 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 8 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-472 9 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-481 8 Redwood City CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2009-07-03   
650-488 3 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-06-01   
650-488 4 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2003-01-09   
650-488 5 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-07-03   
650-488 6 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-09-25   
650-488 7 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-07-30   
650-488 8 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-09-20   
650-488 9 San Francisco: Juniper DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-10-08   
650-489 A San Carlos-Belmont CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-489 0 San Carlos-Belmont CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-01-15   
650-489 4 San Carlos-Belmont CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-489 7 San Carlos-Belmont CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-12-11   
650-489 9 San Carlos-Belmont CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-11-10   
650-490 3 Millbrae CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-02-05   
650-490 4 Millbrae CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2004-04-10   
650-491 A South San Francisco CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 0 South San Francisco CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 3 South San Francisco CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 5 South San Francisco CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-07-20   
650-491 7 South San Francisco CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-07-20   
650-491 8 South San Francisco CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-492 4 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2004-01-13   
650-492 5 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-09-06   
650-492 6 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-09-11   
650-492 7 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-03-15   
650-492 8 Los Altos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-09-04   
650-497 A Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-498 A Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-499 8 Mountain View CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-08-19   
650-507 3 Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2019-12-30   
650-509 4 Palo Alto CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2017-05-08   
650-513 2 San Mateo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-03-05   
650-513 8 San Mateo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-07-22   
650-514 A San Mateo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-514 1 San Mateo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2019-12-30   
650-514 2 San Mateo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2019-05-13   
650-514 3 San Mateo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2020-03-07   

<< 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.