Area Code Lookup
What Area Code Is Sonoma?
2 area codes serve Sonoma · California
Sonoma is served by area codes 369, 707. It is located in California.
Area Codes Serving Sonoma
Frequently Asked Questions
What area code is Sonoma?
Sonoma is served by area codes 369, 707. It is located in California.
Why does Sonoma 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). Sonoma now has 2 area codes — 369 and 707 — covering the same or overlapping areas.
How do I call Sonoma from outside the US?
To call Sonoma from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-369-XXX-XXXX). The +1 is the country code for all NANPA countries.