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.

NPA: 408 [Rate centres in NPA 408] [Dial plan for NPA 408]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-837 A San Martin CA SNFCCASYDS0  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
408-837 0 San Martin CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-01-30   
408-837 1 San Martin CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-23   
408-837 2 San Martin CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-23   
408-837 3 San Martin CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-23   
408-837 4 San Martin CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
408-837 5 San Martin CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-09-22   
408-837 6 San Martin CA   516C AT&T CORP. 722   2011-05-16   
408-837 7 San Martin CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-05-28   
408-837 8 San Martin CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-28   
408-837 9 San Martin CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-11-05   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.