Area Code Lookup
What Area Code Is Chino?
2 area codes serve Chino · California
Chino is served by area codes 840, 909. It is located in California.
Area Codes Serving Chino
Frequently Asked Questions
What area code is Chino?
Chino is served by area codes 840, 909. It is located in California.
Why does Chino have multiple area codes?
As demand for phone numbers increased, NANPA added area codes through splits (dividing the region) or overlays (layering a new code over the same geography). Chino now has 2 area codes — 840 and 909 — covering the same or overlapping areas.
How do I call Chino from outside the US?
To call Chino from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-840-XXX-XXXX). The +1 is the country code for all NANPA countries.