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406 Area Code


The 114 central offices below make up area code (406) in Montana.


These exchanges encompass the following MT cities:

  • Sidney
  • Geraldine
  • Havre
  • Hamilton
  • Big Sky
  • Kalispell
  • Miles City
  • Dillon
  • Bozeman
  • Anaconda
  • Great Falls
  • Darby
  • Saint Ignatius
  • Butte
  • Billings
  • Boulder
  • Broadus
  • Conrad
  • Lakeside
  • Dodson
  • Opheim
  • Columbus
  • Belgrade
  • Powell
  • Judith Gap
  • Divide
  • Libby
  • Olney
  • Missoula
  • Box Elder
  • Shelby
  • Melstone
  • Wolf Point
  • Alzada
  • Helena
  • Clinton
  • Fairfield
  • Lambert
  • Broadview
  • Marion
  • Stockett
  • Dixon
  • Ryegate
  • Bigfork
  • Harlowton
  • Savage
  • White Sulphur Springs
  • Grass Range
  • Melrose
  • Fort Benton
  • Hardin
  • Kremlin
  • Wibaux
  • Winnett
  • Livingston
  • Ashland
  • Hingham
  • Haugan
  • Browning
  • Rosebud
  • Harrison
  • Chinook
  • Plevna

Learn more: Area code 406 at Wikipedia



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