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: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-420 A Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 0 Sunnyvale CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-09-09   
408-420 1 Sunnyvale CA OKLECAZV1MD  5562 METROPCS, INC. 722      
408-420 2 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 3 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 4 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 5 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 6 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 7 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 8 Sunnyvale CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
408-420 9 Sunnyvale CA OKLECAZV1MD  5562 METROPCS, INC. 722      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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