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Montana State in United States
Description
Montana, known as Big Sky Country, is celebrated for its wide-open spaces, stunning mountain ranges, and national parks like Glacier and parts of Yellowstone. With a strong frontier spirit and a deep connection to the outdoors, Montana remains one of the most naturally preserved and sparsely populated states in the U.S.

Montana is served entirely by a single area code — 406, which has been in place since 1947. Despite modest population growth, area code 406 continues to support the entire state, from Billings and Missoula to remote ranching towns and scenic wilderness areas. It stands as a symbol of Montana’s unified, low-density communication network.
Map
Area Codes
Major Cities
CityPrefixes
Billings
Bozeman
Missoula
Dutton
Helena
Kremlin
Roundup
Kila
Great Falls
Lame Deer
East Helena
Gildford
Columbus
Kalispell
Malta
Sun River
Sidney
Glendive
Laurel
Milltown
Wyola
Butte
Loma
Clinton
Dillon
Big Sandy
Bonner
Ismay
Alberton
Reed Point
Hogeland
Jackson
Baker
Polson
Antelope
Loring
Ballantine
Glen
Plevna
Opheim
Medicine Lake
Turner
Huntley
Melrose
Vida
Glentana
Bridger
Reserve
Lewistown
Seeley Lake