Area Code 650 - Details, official location, official service date
https://www.areacodehelp.com/where/area_code_650.shtml
webArea code 650 serves most of San Mateo County and a small area in northwest Santa Clara County, including the larger cities and communities of Belmont, Burlingame, Daly City, East Palo Alto, Foster City, Los Altos, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Redwood City, San Bruno, San Carlos, San Mateo, and South San Francisco ar...
DA: 77 PA: 73 MOZ Rank: 79