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: 635

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-635 A San Jose: North DA CA MLPSCA11DS0  9740 PACIFIC BELL 722      
408-635 0 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 1 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 2 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 3 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 4 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 5 San Jose: North DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2025-09-13   
408-635 6 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 7 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 8 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-635 9 San Jose: North DA CA   9740 PACIFIC BELL 722      

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

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