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: 939

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-939 A San Jose: South DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-12   
408-939 0 San Jose: South DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-12   
408-939 1 San Jose: South DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-20   
408-939 5 San Jose: South DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2026-08-13   
408-939 6 San Jose: South DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-20   
408-939 7 San Jose: South DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-20   
408-939 8 San Jose: South DA CA   649C ONVOY, LLC - CA 722   2026-07-20   
408-939 9 San Jose: South DA CA   649C ONVOY, LLC - CA 722   2026-07-20   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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