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406 area code
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406 Area Code Facts

  • The 406 area code was established in 1947, as one of the original area codes in the North American Numbering Plan.
  • 406 covers the entire state of Montana and a land area of approximately 147,040 square miles, making it one of the largest area codes in the country.
  • Montana is the fourth least populous state in the U.S., with around 1.1 million people.
  • The largest city in the 406 is Billings; other major cities include Missoula, Great Falls, Bozeman, Helena, and Butte.
  • 406 is bordered by area codes 307 (Wyoming), 208 (Idaho), 509 (Washington), 701 (North Dakota), and 605 (South Dakota).
  • Montana features stunning natural landscapes, including Glacier National Park, Yellowstone National Park, and the Rocky Mountains.
  • 406 is renowned for a variety of outdoor recreational activities, such as hiking, fishing, hunting, skiing, and rafting.
  • This area code is known for its rich Native American history and culture, with several tribes residing in the state, including the Blackfeet, Crow, and Salish-Kootenai.

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