Montana · Area code
Area Code 406Billings, MT
Area code 406 is in Montana, United States, and serves Billings, Missoula, Bozeman, Helena and Great Falls and other places nearby. Its time zone is Mountain Time.
Area code 406 at a glance
- Area code
- 406
- Main place
- Billings, MT
- State
- Montana
- Country
- 🇺🇸 United States
- Country calling code
- +1
- Time zone
- Mountain Time (America/Denver)
- Dial from abroad
- +1 406 XXX XXXX
- Dial inside the US and Canada
- 1 406 XXX XXXX
Cities and places in area code 406
The places phone numbers beginning 406 were issued in, the most common first.
- Billings, MT
- Missoula, MT
- Bozeman, MT
- Helena, MT
- Great Falls, MT
- Kalispell, MT
- Butte, MT
- Miles City, MT
- Conrad, MT
- Eureka, MT
- Glendive, MT
- Hamilton, MT
- Lewistown, MT
- Manhattan, MT
- Sidney, MT
- Whitefish, MT
- Absarokee, MT
- Anaconda, MT
- Arlee, MT
- Baker, MT
- Belgrade, MT
- Big Sky, MT
- Big Timber, MT
- Bigfork, MT
- Boulder, MT
- Broadus, MT
- Browning, MT
- Chester, MT
- Chinook, MT
- Choteau, MT
- Circle, MT
- Colstrip, MT
- Columbia Falls, MT
- Columbus, MT
- Corvallis, MT
- Cut Bank, MT
- Darby, MT
- Deer Lodge, MT
- Dillon, MT
- East Helena, MT
Look up a 406 number
Enter a full number with area code 406: it shows the line type, place, network and time zone, and every way to write it. Free and private.
Area code 406: frequently asked questions
Where is area code 406?
Area code 406 is in Montana, United States. It serves places including Billings, Missoula, Bozeman, Helena, Great Falls, Kalispell, Butte and Miles City.
What time zone is area code 406 in?
Area code 406 is on Mountain Time. A number with this area code can belong to someone living anywhere, so the time zone tells you where the number was issued rather than where the person is.
Which country is area code 406 in?
Area code 406 belongs to the United States, part of the North American Numbering Plan. Country code +1 is shared by the United States, Canada and many Caribbean and Pacific countries; the area code decides which one a number is in.
How do I call a 406 number from another country?
Dial your country's international access code (or press + on a mobile phone), then 1, then 406, then the seven-digit number: +1 406 followed by the number. Inside the United States and Canada, dial 1 and the ten digits.
Can I tell who is calling from an area code?
No. The area code only shows where a number was first issued. People keep their numbers when they move, mobile numbers work anywhere, and callers can disguise the number they call from. To see what the numbering plan says about a specific number, use the free phone number lookup.