Locations for Area Code - 406

Area code 406 covers the entire state of Montana and has done so since its creation in 1947. As one of the few states with a single area code, 406 symbolizes Montana’s vast geography, strong sense of community, and independent spirit. It includes cities like Billings, Missoula, Bozeman, and Great Falls. Known for its rugged beauty, national parks, and frontier heritage, Montana is deeply associated with outdoor recreation and a slower pace of life. Seven-digit dialing is still common for in-state calls. Area code 406 is a treasured and widely recognized symbol of Montana identity, used frequently in branding and local pride.