Area Code Lookup
What Area Code Is Havre?
Area code 406 · Montana
Havre uses area code 406. It is located in Montana.
Area Code Serving Havre
Frequently Asked Questions
What area code is Havre?
Havre uses area code 406. It is located in Montana.
How do I call Havre from outside the US?
To call Havre 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.