Learn about the 840 area code, including its location, cities, time zone, introduction date, and related area codes.
840 Area Code Details
Where Is Area Code 840 Located?
The 840 area code serves communities in California. The exact communities and numbering assignments can change as telephone numbering resources are updated.
840 Area Code Time Zone
The 840 area code is associated with the Pacific time zone.
When Was 840 Area Code Introduced?
The 840 area code was introduced in 23-Feb-2021.
How to Call a 840 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
840 Area Code FAQ
What state is 840 area code in?
The 840 area code is associated with California.
What time zone is 840 area code in?
The 840 area code is associated with Pacific.
More Questions About Area Code 840
What state is area code 840 in?
Area code 840 is associated with California.
What time zone is area code 840 in?
The listed time zone for area code 840 is Pacific.