Area Code 406 - Billings, MT

Below is the information for Area Code 406
General Information for Area Code 406
Country United States
State/Province Montana
Major City Billings
Time Zone Mountain (UTC-07:00)

Phone directory of numbers beginning with Area Code 406 Prefixes

Prefix Primary City County Phone Type
406-221 Butte, MT Silver Bow Landline
406-222 Livingston, MT Park Landline
406-223 Livingston, MT Park Cell Number
406-224 Livingston, MT Park Cell Number
406-225 Boulder, MT Jefferson Landline
406-226 Essex, MT Flathead Landline
406-227 East Helena, MT Lewis And Clark Landline
406-228 Glasgow, MT Valley Landline
406-229 Livingston, MT Park Cell Number
406-230 Glasgow, MT Valley Cell Number
406-231 Great Falls, MT Cascade Cell Number
406-232 Miles City, MT Custer Landline
406-233 Miles City, MT Custer Landline
406-234 Miles City, MT Custer Landline
406-235 Wolf Creek, MT Lewis And Clark Landline
406-236 Neihart, MT Cascade Landline
406-237 Billings, MT Yellowstone Landline
406-238 Billings, MT Yellowstone Landline
406-239 Missoula, MT Missoula Cell Number
406-240 Missoula, MT Missoula Cell Number
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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
  • and so on.

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