Area code 406
Get a local Montana phone number
Looking to expand into Montana? Start by getting a local phone number in the 406 area code from Sideline.
Why choose Sideline for your 406 phone number?
Establish a local presence quickly and easily
There’s no need for a second phone when you’ve got Sideline. Just download the app to add a second number to the phone you already have, and connect with the local community.
Keep your communication separate and organized
Sideline helps you keep work separate from your personal life with a dedicated second number, a custom voicemail, personalized ringtones, and a Sideline-specific contacts list.
Identify callers and reduce spam
You’ll always know who’s calling with Sideline’s advanced Caller ID, and Spam Filtering automatically detects spam calls and sends them straight to voicemail for your review.
Access your second number from any device
Whether you’re on the go or working from home, your Sideline number is always there for you. Use the mobile app on your phone and tablet, or access Sideline on the web.
How do I get a 406 phone number with Sideline?
- Choose a local number
- Select a monthly or yearly plan*
- Start sharing your new phone number!
Sideline is more than just a second number
Superior Call Quality
Sideline uses your carrier’s network for top-tier call quality.
No WiFi Needed
Unlike VoIP services, Sideline gives you the freedom to leave your WiFi network.
Avoid Spam
We detect spam calls, telemarketers, and potential fraud so you can easily avoid them.
Auto-Reply
Send an automated text reply to any missed calls or messages.
Separate Voicemail
Record your Sideline greeting so people can leave a message after the beep.
Unlimited Messaging
Send unlimited SMS, MMS, and group messages.
Number Porting
Already have a second number? Bring it to Sideline from another device or landline.
Ring & Text Tones
Differentiate between numbers with unique ring and text tones.
About the 406 Area Code
Where the 406 area code covers
The 406 area code offers statewide coverage across Montana, including Billings, Missoula, Great Falls, Bozeman, Butte, Helena, and Kalispell, as well as smaller communities across all 56 counties.
Overlays for the 406 area code
There are no overlays - Montana operates statewide under the 406 area code.
Time zone for the 406 area code
Montana is in the Mountain Time Zone and follows daylight saving time.
Interesting facts about the 406 area code in Montana
- Montana is the fourth-largest state in the U.S., known for its wide-open spaces and dramatic landscapes.
- Billings is the state's biggest city, while Helena proudly serves as the capital.
- Three of Yellowstone National Park's five entrances are in Montana - at Gardiner, West Yellowstone, and Cooke City, giving visitors easy access to the park's wild beauty.
- In the state's northwest corner, Glacier National Park draws travelers from around the world with its stunning peaks and the famous Going-to-the-Sun Road.
- Montana State University in Bozeman and the University of Montana in Missoula are the state's leading public universities, known for their strong academics and mountain-town spirit.
- Agriculture remains a backbone of the economy, with cattle ranches and golden wheat fields stretching across the plains.
- The Continental Divide winds through western Montana, shaping the rugged mountains and pristine rivers along its path.
- Nicknamed "Big Sky Country," Montana is celebrated for its endless horizons and sense of open freedom.
FAQs about the 406 area code
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