About Area Code 510
Area code 510 serves California, covering major cities including Oakland, Fremont. Operating in the Pacific Time (PT), this code was established in 1991.
| State | Time Zone | Cities |
|---|---|---|
| California | Pacific Time (PT) | Oakland, Fremont |
Active Area Code
510
California
Pacific Time (PT)
Est. 1991
PRIMARY
Location
California
Oakland
ACTIVE
Coverage
2 Cities
Since 1991
Beware of Spam Calls
Scammers frequently use 510 numbers. Always verify unknown callers before sharing personal information.
Protect Yourself NowCommon Questions
Where is 510?
Located in California, serving Oakland and surrounding areas.
What time zone?
Operates in Pacific Time (PT).
When established?
Area code 510 was introduced in 1991.
Used for spam?
Can be used by legitimate and fraudulent callers. Always verify unknown numbers.