About Area Code 858
Area code 858 serves California, covering major cities including San Diego. Operating in the Pacific Time (PT), this code was established in 1999.
| State | Time Zone | Cities |
|---|---|---|
| California | Pacific Time (PT) | San Diego |
Active Area Code
858
California
Pacific Time (PT)
Est. 1999
PRIMARY
Location
California
San Diego
ACTIVE
Coverage
1 Cities
Since 1999
Beware of Spam Calls
Scammers frequently use 858 numbers. Always verify unknown callers before sharing personal information.
Protect Yourself NowCommon Questions
Where is 858?
Located in California, serving San Diego and surrounding areas.
What time zone?
Operates in Pacific Time (PT).
When established?
Area code 858 was introduced in 1999.
Used for spam?
Can be used by legitimate and fraudulent callers. Always verify unknown numbers.