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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-856 A San Jose: North DA CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
408-856 0 San Jose: North DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-01-21   
408-856 1 San Jose: North DA CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
408-856 2 San Jose: North DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2007-01-27   
408-856 3 San Jose: North DA CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
408-856 4 San Jose: North DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-23   
408-856 5 San Jose: North DA CA OKLECAZV1MD  5562 METROPCS, INC. 722   2010-08-09   
408-856 6 San Jose: North DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-05-29   
408-856 7 San Jose: North DA CA FRMTCAJYDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-13   
408-856 8 San Jose: North DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2008-05-05   
408-856 9 San Jose: North DA CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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