Learn about the 510 area code, including its location, cities, time zone, introduction date, and related area codes.
510 Area Code Details
Major Cities in the 510 Area Code
The 510 area code is associated with the following cities and communities:
- Alameda
- Berkeley
- Castro Valley
- El Cerrito
- Fremont
- Hayward
- Newark
- Oakland
- Richmond
- San Leandro
- San Lorenzo
- San Pablo
- Union City
Where Is Area Code 510 Located?
The 510 area code serves communities in California. The exact communities and numbering assignments can change as telephone numbering resources are updated.
510 Area Code Time Zone
The 510 area code is associated with the Pacific time zone.
When Was 510 Area Code Introduced?
The 510 area code was introduced in 02-Sep-1991.
How to Call a 510 Area Code Number
For a call within the same numbering plan, dial the required local number according to your carrier’s dialing rules. For calls from outside the United States, use the United States country code (+1), followed by the area code and seven-digit telephone number.
Related Area Codes
510 Area Code FAQ
What state is 510 area code in?
The 510 area code is associated with California.
What time zone is 510 area code in?
The 510 area code is associated with Pacific.
What cities use 510 area code?
Alameda|Berkeley|Castro Valley|El Cerrito|Fremont|Hayward|Newark|Oakland|Richmond|San Leandro|San Lorenzo|San Pablo|Union City
More Questions About Area Code 510
What state is area code 510 in?
Area code 510 is associated with California.
What time zone is area code 510 in?
The listed time zone for area code 510 is Pacific.