510 Area Code - Location, Time, Map, Cities and Census Data - ZIP-Codes.com
https://www.zip-codes.com/area-code/area-code-510.asp
WEBApr 1, 2024 · Important 510 Area Code Information. Area Code 510 is located in California. It covers 21 cities, including San Jose, San Francisco, Oakland, Fremont, and Hayward. It also covers 4 counties, including Alameda County, Contra Costa County, San Francisco County, Santa Clara County.
DA: 33 PA: 50 MOZ Rank: 48