Area Code Lookup
What Area Code Is St Helena?
Area code 707 · California
St Helena uses area code 707. It is located in California.
Area Code Serving St Helena
Frequently Asked Questions
What area code is St Helena?
St Helena uses area code 707. It is located in California.
How do I call St Helena from outside the US?
To call St Helena from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-707-XXX-XXXX). The +1 is the country code for all NANPA countries.