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.

OCN: 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
408-601 6 San Jose: North DA CA SNJSCA02DS4  722   2012-04-12   
408-624 3 San Jose: South DA CA   722      
408-642 2 San Jose: West DA CA SNJSCA02DS4  722   2007-11-12   
408-642 3 San Jose: West DA CA SNJSCA02DS4  722   2007-11-12   
408-647 A Saratoga CA SNJSCA02DS4  722      
408-647 9 Saratoga CA SNJSCA02DS4  722      
408-664 A Sunnyvale CA SNJSCA02DS4  722      
408-664 1 Sunnyvale CA SNJSCA02DS4  722   2012-09-07   
408-664 3 Sunnyvale CA SNJSCA02DS4  722   2012-05-07   
408-664 4 Sunnyvale CA SNJSCA02DS4  722   2012-05-07   
408-664 7 Sunnyvale CA SNJSCA02DS4  722   2012-08-02   
408-678 A San Jose: North DA CA SNJSCA02DS4  722      
408-678 0 San Jose: North DA CA SNJSCA02DS4  722      
408-678 1 San Jose: North DA CA SNJSCA02DS4  722      
408-678 2 San Jose: North DA CA SNJSCA02DS4  722      
408-678 3 San Jose: North DA CA SNJSCA02DS4  722      
408-678 4 San Jose: North DA CA SNJSCA02DS4  722      
408-678 5 San Jose: North DA CA SNJSCA02DS4  722      
408-678 6 San Jose: North DA CA SNJSCA02DS4  722      
408-678 7 San Jose: North DA CA SNJSCA02DS4  722      
408-678 8 San Jose: North DA CA SNJSCA02DS4  722      
408-678 9 San Jose: North DA CA SNJSCA02DS4  722      
408-701 6 Sunnyvale CA SNJSCA02DS4  722   2010-06-01   
408-705 A San Jose: South DA CA SNRSCA01KMD  722      
408-705 9 San Jose: South DA CA SNRSCA01KMD  722      
408-717 5 San Jose: South DA CA SNJSCA02DS4  722   2003-03-10   
408-717 6 San Jose: South DA CA SNJSCA02DS4  722   2003-03-10   
408-717 7 San Jose: South DA CA SNJSCA02DS4  722   2003-03-10   
408-717 8 San Jose: South DA CA SNJSCA02DS4  722   2003-03-10   
408-717 9 San Jose: South DA CA SNJSCA02DS4  722   2003-03-10   
408-719 7 San Jose: North DA CA SNRSCA01KMD  722   2018-12-03   
408-752 8 Sunnyvale CA SNRSCA01KMD  722   2010-06-06   
408-783 A San Jose: West DA CA SNJSCA02DS4  722      
408-783 0 San Jose: West DA CA   722   2011-09-04   
408-783 1 San Jose: West DA CA   722   2011-09-04   
408-783 2 San Jose: West DA CA   722   2011-09-04   
408-783 3 San Jose: West DA CA   722   2011-09-04   
408-783 4 San Jose: West DA CA   722   2011-09-04   
408-783 5 San Jose: West DA CA   722   2011-09-04   
408-783 6 San Jose: West DA CA   722   2011-09-04   
408-783 7 San Jose: West DA CA   722   2011-09-04   
408-783 8 San Jose: West DA CA   722   2011-09-04   
408-783 9 San Jose: West DA CA   722   2011-09-04   
408-785 5 San Jose: West DA CA SNJSCA02DS4  722   2010-09-17   
408-790 5 San Jose: West DA CA SNRSCA01KMD  722   2018-12-11   
408-825 A Morgan Hill CA SNJSCA02DS4  722      
408-825 0 Morgan Hill CA SNJSCA02DS4  722      
408-825 5 Morgan Hill CA SNJSCA02DS4  722   2004-05-24   
408-826 A San Jose: South DA CA SNRSCA01KMD  722      
408-826 0 San Jose: South DA CA SNRSCA01KMD  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 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.