Area Code Lookup
What Area Code Is Helena?
Area code 406 · Montana
Helena uses area code 406. It is located in Montana.
Area Code Serving Helena
Frequently Asked Questions
What area code is Helena?
Helena uses area code 406. It is located in Montana.
How do I call Helena from outside the US?
To call Helena from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-406-XXX-XXXX). The +1 is the country code for all NANPA countries.