Area Code 406 serves the entire state of Montana, established in 1947 when the North American Numbering Plan was implemented. Initially, Montana was part of the 303 area code before it was assigned its own distinct code. The area code has remained unchanged since its inception, marking it as one of the original area codes.
Geographically, Area Code 406 encompasses a diverse range of landscapes, from the Rocky Mountains to vast plains and numerous national parks, including Glacier National Park and Yellowstone National Park. The sprawling size of Montana means that 406 covers a large area with a relatively small population, resulting in a low population density.
The telecommunications infrastructure in this region reflects its rural character. While major cities such as Billings, Missoula, and Great Falls have modern services, some remote areas may still experience limited telecommunications options. Despite advancements in technology, certain mountain areas and rural communities face challenges with cell coverage and high-speed internet access.
Area Code 406 is unique because it does not have any overlay area codes, unlike many other regions in the United States. This means that residents and businesses within this area exclusively utilize the 406 area code for their telephone numbers, thereby preserving a distinct identity within Montana's telecommunication landscape. As the state continues to grow, Area Code 406 remains a vital part of its communication framework.
Cities with 406 Area Code: |
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Billings (MT) |
Bozeman (MT) |
Butte (MT) |
Great Falls (MT) |
Helena (MT) |
Missoula (MT) |
Area code 406 covers all of Montana, including cities like Billings, Missoula, and Bozeman. Here’s what to know!
If you receive a phone call with the first 3 digits 406 in the United States, you should know that they could belong to Billings (MT), Bozeman (MT), Butte (MT), Great Falls (MT), Helena (MT), Missoula (MT).
Dialing the area code 406 from another state in the United States is considered a long-distance call. Here’s how to make the call: First, dial the area code for 406. Each state, and sometimes specific cities within a state, has unique area codes. Then, enter the 7-digit phone number of the person or business you’re trying to reach. If you’re calling from a landline, check with your provider, as long-distance charges may apply. However, most mobile carriers in the U.S. offer nationwide calling without additional fees. Alternatively, you can use VoIP or internet-based calling apps, like Skype, Zoom, or WhatsApp, to bypass traditional long-distance charges. The number you want to reach should look like this: 1-(AreaCode)-111-2222.
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