Local Calling Guide

Area code/prefix search

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NPA: 669 [Rate centres in NPA 669] [Dial plan for NPA 669]

NXX: 378

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
669-378 A Sunnyvale CA   649C ONVOY, LLC - CA 722   2026-08-17   
669-378 0 Sunnyvale CA   649C ONVOY, LLC - CA 722   2026-08-17   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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