Learn about the 858 area code, including its location, cities, time zone, introduction date, and related area codes.
858 Area Code Details
Major Cities in the 858 Area Code
The 858 area code is associated with the following cities and communities:
- Poway
Where Is Area Code 858 Located?
The 858 area code serves communities in California. The exact communities and numbering assignments can change as telephone numbering resources are updated.
858 Area Code Time Zone
The 858 area code is associated with the Pacific time zone.
When Was 858 Area Code Introduced?
The 858 area code was introduced in 12-Jun-1999.
How to Call a 858 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
858 Area Code FAQ
What state is 858 area code in?
The 858 area code is associated with California.
What time zone is 858 area code in?
The 858 area code is associated with Pacific.
What cities use 858 area code?
Poway
More Questions About Area Code 858
What state is area code 858 in?
Area code 858 is associated with California.
What time zone is area code 858 in?
The listed time zone for area code 858 is Pacific.