Area Code Lookup
What Area Code Is San Bernardino?
2 area codes serve San Bernardino · California
San Bernardino is served by area codes 840, 909. It is located in California.
Area Codes Serving San Bernardino
Frequently Asked Questions
What area code is San Bernardino?
San Bernardino is served by area codes 840, 909. It is located in California.
Why does San Bernardino 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). San Bernardino now has 2 area codes — 840 and 909 — covering the same or overlapping areas.
How do I call San Bernardino from outside the US?
To call San Bernardino 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.