Montana BillingsGeographic

Area Code 406

Billings, Montana

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46,918

Available Numbers

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Cities Covered

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Denver

Timezone

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10-digit

Dialing Rules

Coverage Area

406 Cities and regions covered

Montana · MT

Major Cities

Billings Missoula Great Falls Bozeman Helena Butte Kalispell Havre Anaconda Miles City Lewistown Livingston

In Service 1947-01-01

Status Active

Area Code History

406

406区号于1947年随北美编号计划启用，覆盖整个蒙大拿州，至今仍是该州唯一的区号。

Dialing Rules

406

10-digit

When dialing 406 area code numbers, follow these rules:

Local calls require full 10-digit dialing (area code + 7-digit number)
Long-distance calls require 1 + area code + 7-digit number

Why 406 is Valuable for Business

406 · Billings

The 406 area code covers Billings and surrounding areas, making it one of the most commercially valuable area codes in Montana. Owning a premium 406 number enhances your business image and customer trust.

Premium Numbers

406 Premium numbers in this area code

FAQ

406 FAQ

What state is the 406 area code in?

The 406 area code is in Montana (MT), primarily covering Billings and surrounding areas.

How do I get a premium 406 area code number?

You can search and buy premium 406 numbers on GreatNumber. We offer one-time payment with lifetime ownership — no monthly fees or hidden charges. We provide full porting assistance after purchase.

Can I port a 406 number to another carrier?

Yes, all numbers purchased on GreatNumber can be ported to any carrier of your choice (T-Mobile, AT&T, Verizon, etc.). Porting typically takes 3-14 business days, and we provide full bilingual support.

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Browse all available premium numbers in the 406 area code.

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Area Code 406

406 Cities and regions covered

Major Cities

406

406

406 · Billings

406 Premium numbers in this area code

406 FAQ

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