Plains, Montana Area Code
Plains, MT Area Codes are
Plains, MT is officially utilizing one area code which is area code 406.
In addition to Plains, MT area code information read more about area code 406 details and Montana area codes.
Plains, MT is located in Sanders County and observes the Mountain Time Zone. View our Times by Area Code tool.
Area Codes Look Up By State and City
Area Codes Look Up in Surrounding Places