406 Area Code Data

Area code 406 has a total estimated population of 921,002 people and covers the following localities in Montana:

  • Absarokee
  • Alberton
  • Alzada
  • Anaconda
  • Angela
  • Arlee
  • Ashland
  • Augusta
  • Avon
  • Bainville
  • Baker
  • Basin
  • Belfry
  • Belgrade
  • Belt
  • Big Sandy
  • Big Sky
  • Big Timber
  • Bigfork
  • Billings
  • Birney
  • Bloomfield
  • Boulder
  • Box Elder
  • Bozeman
  • Brady
  • Bridger
  • Broadus
  • Broadview
  • Brockton
  • Browning
  • Busby
  • Butte
  • Camp Crook
  • Canyon Creek
  • Carter
  • Cascade
  • Charlo
  • Chester
  • Chinook
  • Choteau
  • Circle
  • Clancy
  • Clinton
  • Clyde Park
  • Colstrip
  • Columbia Falls
  • Columbus
  • Condon
  • Conrad
  • Cooke City
  • Corvallis
  • Crow Agency
  • Culbertson
  • Custer
  • Cut Bank
  • Dagmar
  • Darby
  • Dayton
  • Decker
  • Deer Lodge
  • Denton
  • Dillon
  • Divide
  • Dixon
  • Dodson
  • Drummond
  • Dupuyer
  • Dutton
  • East Glacier Park
  • East Helena
  • Ekalaka
  • Elmo
  • Ennis
  • Eureka
  • Fairfield
  • Fairview
  • Fallon
  • Flaxville
  • Forsyth
  • Fort Benton
  • Fort Peck
  • Fort Smith
  • Frazer
  • Frenchtown
  • Froid
  • Fromberg
  • Gallatin Gateway
  • Gardiner
  • Geraldine
  • Geyser
  • Gildford
  • Glasgow
  • Glendive
  • Glentana
  • Grass Range
  • Great Falls
  • Hamilton
  • Hardin
  • Harlem
  • Harlowton
  • Harrison
  • Haugan
  • Havre
  • Hays
  • Helena
  • Highwood
  • Hingham
  • Hinsdale
  • Hobson
  • Hot Springs
  • Hulett
  • Hungry Horse
  • Huntley
  • Hysham
  • Joliet
  • Joplin
  • Jordan
  • Judith Gap
  • Kalispell
  • Kremlin
  • Lakeside
  • Lambert
  • Lame Deer
  • Larslan
  • Laurel
  • Lavina
  • Lewistown
  • Libby
  • Lima
  • Lincoln
  • Lindsay
  • Livingston
  • Lodge Grass
  • Lolo
  • Loma
  • Malta
  • Manhattan
  • Marion
  • Martinsdale
  • Medicine Lake
  • Melrose
  • Melstone
  • Melville
  • Miles City
  • Missoula
  • Molt
  • Moore
  • Musselshell
  • Nashua
  • Neihart
  • Noxon
  • Olney
  • Opheim
  • Outlook
  • Ovando
  • Pablo
  • Park City
  • Peerless
  • Pendroy
  • Philipsburg
  • Plains
  • Plentywood
  • Plevna
  • Polson
  • Poplar
  • Powell
  • Power
  • Pray
  • Rapelje
  • Raynesford
  • Red Lodge
  • Reed Point
  • Reserve
  • Richey
  • Roberts
  • Ronan
  • Rosebud
  • Roundup
  • Roy
  • Rudyard
  • Ryegate
  • Saco
  • Saint Ignatius
  • Saint Marie
  • Savage
  • Scobey
  • Seeley Lake
  • Shelby
  • Sheridan
  • Sidney
  • Somers
  • Stanford
  • Stevensville
  • Stockett
  • Sunburst
  • Superior
  • Terry
  • Thompson Falls
  • Three Forks
  • Townsend
  • Troy
  • Turner
  • Twin Bridges
  • Ulm
  • Valier
  • Vaughn
  • Victor
  • Virginia City
  • Volborg
  • Warm Springs
  • West Glacier
  • West Yellowstone
  • Westby
  • White Sulphur Springs
  • Whitefish
  • Whitehall
  • Whitewater
  • Wibaux
  • Wilsall
  • Winifred
  • Winnett
  • Wisdom
  • Wise River
  • Wolf Creek
  • Wolf Point
  • Worden
  • Wyola

The (406) area code is comprised of 661 unique phone exchanges: