840 Area Code
California · United States
Country code +1 · ISO US
Example 840 Number
A sample number from this area code, formatted three ways.
| National | International | E.164 |
|---|---|---|
| (840) 555-0123 | +1 840-555-0123 | +18405550123 |
Try it now
Pre-filled with a 840 sample number. Edit it and click "Try It" to see the parsed result.
Cities and Regions
Locations served by the 840 area code, according to Google's libphonenumber.
- · California
How to Dial United States Numbers
From abroad
Dial +1 followed by the national number, dropping any leading 1.
Within United States
Dial 1 before the local number to make a domestic call.
Dialing out of United States
Dial 011 followed by the destination country code and number.
Nearby United States Area Codes
Frequently Asked Questions
Where is the 840 area code?
└ The 840 area code covers California in United States.
What timezone is the 840 area code in?
└ Numbers in the 840 area code are in the America/Los_Angeles timezone.
How do I dial a 840 number?
└ From abroad, dial +1 840 followed by the local number. Within United States, dial 1840 before the local number.