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: 518

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-518 A San Jose: North DA CA SNJSCA02DS2  7421 AT&T LOCAL 722      
408-518 0 San Jose: North DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-11-09   
408-518 1 San Jose: North DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2004-02-29   
408-518 2 San Jose: North DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2004-02-29   
408-518 3 San Jose: North DA CA SNJSCA02DS2  7421 AT&T LOCAL 722      
408-518 4 San Jose: North DA CA SNJSCA02DS2  7421 AT&T LOCAL 722      
408-518 5 San Jose: North DA CA SNJSCA02DS2  7421 AT&T LOCAL 722      
408-518 6 San Jose: North DA CA SNJSCA02DS2  7421 AT&T LOCAL 722      
408-518 7 San Jose: North DA CA SNJSCA02DS2  7421 AT&T LOCAL 722      
408-518 8 San Jose: North DA CA SNJUCA10DS0  8322 MPOWER COMMUNICATIONS CORP - CA 722   2004-02-02   
408-518 9 San Jose: North DA CA OKLECAZVGT0  5562 METRO PCS, INC. 722   2005-03-13   

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.