840 area code
Area code 840 is in California, United States, in the Pacific time zone. It covers San Bernardino, Chino, Chino Hills and more.
State / Province
California (CA)
Country
United States
Region
West
Time zone
Pacific
Current local time
—
Approx. location
34.0743, -117.5406 ↗
How to dial a 840 number
- National format
- (840) 555-0100
- International (E.164)
- +1 840 555 0100
- From abroad
- +1 840 …
Cities & areas in the 840 area code
3 known locations — a selection:
San Bernardino
Chino
Chino Hills
About area code 840
Area code 840 is one of the North American Numbering Plan (NANP) codes serving California. In the NANP a full number looks like +1 (840) NXX-XXXX: the +1 is the country code for the US and Canada, 840 is the area code, and the remaining seven digits identify the specific line. A call is charged by your own carrier's plan, not by the area code itself.