Area Code Lookup
What Area Code Is San Francisco?
2 area codes serve San Francisco · California
San Francisco is served by area codes 415, 628. It is located in California.
Area Codes Serving San Francisco
Frequently Asked Questions
What area code is San Francisco?
San Francisco is served by area codes 415, 628. It is located in California.
Why does San Francisco 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 Francisco now has 2 area codes — 415 and 628 — covering the same or overlapping areas.
How do I call San Francisco from outside the US?
To call San Francisco from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-415-XXX-XXXX). The +1 is the country code for all NANPA countries.