Montana Area Codes
Montana has 1 area code. Located in the West region of the United States.
All Area Codes in Montana
| Area Code | Primary City / Region | Full Number Format |
|---|---|---|
| 406 | Billings , Montana |
+1 (406) XXX-XXXX
|
How to Dial Montana Area Codes
Calling within the US
To call a phone number in Montana from anywhere within the United States:
1 + (406) + XXX-XXXX
- Dial 1 (the US/Canada country code)
- Dial the area code (e.g., 406)
- Dial the 7-digit local number
Calling from outside the US
To call Montana from an international location:
[Exit Code] + 1 + (406) + XXX-XXXX
Replace [Exit Code] with your country's international access code
(e.g., 00 from most European countries, 0011 from Australia).
Emergency Numbers
| 911 | Police, Fire, Ambulance (Emergency) |
| 311 | Non-emergency municipal services |
| 211 | Community services and information |
| 988 | Suicide & Crisis Lifeline |
About Montana Area Codes
Montana is served by 1 area code within the North American Numbering Plan (NANP). The entire state uses a single area code: 406.
All Montana phone numbers use the international country code +1, followed by the three-digit area code and a seven-digit local number, for a total of 11 digits when dialing internationally.
Montana at a Glance
| State | Montana |
|---|---|
| Country Code | +1 |
| Area Codes | 1 |
| Region | West |
| Codes List |
406
|
Montana Map
Map of Montana area code regions