Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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South San Francisco, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-990 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-23   
650-990 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-07-23   
650-990 5   649C ONVOY, LLC - CA 722   2026-09-14   
650-990 6   649C ONVOY, LLC - CA 722   2026-09-14   
650-990 7   649C ONVOY, LLC - CA 722   2026-09-14   
650-990 8   649C ONVOY, LLC - CA 722   2026-09-14   
650-990 9   649C ONVOY, LLC - CA 722   2026-09-14   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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