Question 1

Where is area code 406?

Accepted Answer

Area code 406 covers Billings and nearby cities including Missoula, Great Falls, Bozeman in Montana, in the Mountain Time.

Question 2

What cities use area code 406?

Accepted Answer

Area code 406 serves Billings, Missoula, Great Falls, Bozeman, Butte, and 1 other communities in Montana.

Question 3

What time zone is area code 406 in?

Accepted Answer

Area code 406 is in the Mountain Time (America/Denver).

Question 4

How do you dial a 406 number?

Accepted Answer

Dial all 10 digits: 406 followed by the 7-digit local number. From abroad, dial +1 406 and the local number.

Question 5

Is a call from area code 406 a scam?

Accepted Answer

A 406 number is geographically tied to Montana, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.

Question 6

Is 406 a country code?

Accepted Answer

No. 406 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 406 number written for international dialing looks like +1 406 followed by the 7-digit local number.

Area Code 406

Cities in area code 406

Area codes by city

Carriers in area code 406

Nearby area codes