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: 419

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-419 A Sunnyvale CA SNVACA11DS0  9740 PACIFIC BELL 722      
408-419 0 Sunnyvale CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-08-29   
408-419 1 Sunnyvale CA   649C ONVOY, LLC - CA 722   2007-01-27   
408-419 2 Sunnyvale CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-03-11   
408-419 3 Sunnyvale CA   9740 PACIFIC BELL 722   2006-12-27   
408-419 4 Sunnyvale CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-03-11   
408-419 5 Sunnyvale CA   9740 PACIFIC BELL 722   2006-12-27   
408-419 6 Sunnyvale CA   9740 PACIFIC BELL 722   2006-12-27   
408-419 7 Sunnyvale CA   9740 PACIFIC BELL 722   2006-12-27   
408-419 8 Sunnyvale CA   9740 PACIFIC BELL 722   2006-12-27   
408-419 9 Sunnyvale CA   649C ONVOY, LLC - CA 722   2011-03-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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