Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-778 A San Mateo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-23   
650-778 0 San Mateo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-23   
650-778 1 San Mateo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-24   
650-778 8 San Mateo CA   649C ONVOY, LLC - CA 722   2026-07-24   
650-778 9 San Mateo CA   649C ONVOY, LLC - CA 722   2026-07-24   

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

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