Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 408 [Rate centres in NPA 408] [Dial plan for NPA 408]

NXX: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-668 A San Jose: West DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
408-668 0 San Jose: West DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
408-668 1 San Jose: West DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
408-668 2 San Jose: West DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
408-668 3 San Jose: West DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
408-668 4 San Jose: West DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2003-12-31   
408-668 5 San Jose: West DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2003-12-31   
408-668 6 San Jose: West DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-08-12   
408-668 7 San Jose: West DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-09-10   
408-668 8 San Jose: West DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2008-04-28   
408-668 9 San Jose: West DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-02-10   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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