Area Code 406 Phone Number
for Your Business
Get a local 406 number for your business in Billings, MT. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 406?
Area code 406 is a North American telephone area code serving Billings, Montana. It is one of the original 1947 North American area codes and operates on Mountain Time. Businesses operating in the 406 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 406 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 406 at a Glance
- Region
- Statewide, Montana
- In service
- One of the original 1947 North American area codes
- Time zone
- Mountain Time
- Overlay
- None — the only area code for its territory
- Telemarketing hours
- 8 a.m.–9 p.m. Mountain Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Why Your Business Needs a 406 Local Number
A local number tells customers you're part of the community. People in Billings are more likely to pick up a call from a 406 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 406 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 406
What cities use area code 406?
Area code 406 serves the Statewide area of Montana. Cities in the 406 region include Billings, MT.
Is area code 406 an overlay?
No. 406 is not part of an overlay; it is the only area code serving its territory.
What time zone is area code 406 in?
Area code 406 is in Mountain Time. Telemarketing calls to residential 406 numbers are limited to 8 a.m.–9 p.m. Mountain Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 406 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 406 area code number regardless of where your business is physically located. This lets you establish a local presence in Billings without a physical office.
Can I keep my existing 406 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 406 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 406 local number is included in the plan.
Get Your 406 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.