Billings, Montana uses area code 406.

Area code 406 transitioned to mandatory 10-digit dialing on October 24, 2021.

The transition to 10-digit dialing in Montana was necessary to accommodate the implementation of the 988 National Suicide Prevention Lifeline.

The sole area code for the entire state of Montana is 406.

Major Montana cities using area code 406 include Billings, Bozeman, Butte, Great Falls, Helena, and Missoula.

As of 2013, there were approximately 1.7 million available phone lines in area code 406.

Montana utilizes number pooling as a strategy to manage the allocation of phone numbers efficiently within area code 406.

Area code 406 was established in 1947 as part of the North American Numbering Plan (NANP).

Sufficient numbers are expected within area code 406 until approximately 2031.

The Montana Public Service Commission (PSC) regulates area code 406.

Major carriers in area code 406 include AT&T, Verizon, T-Mobile, and CenturyLink, along with local providers like Hot Springs Telephone Company and Northern Telephone Cooperative.

Area code 406 supports landline, wireless, and VoIP services.

Area code 406 covers the entire state of Montana.

Montana uses only one area code: 406. This area code covers the entire state, from major cities like Billings and Missoula to rural areas, and has been in place since 1947 as part of the North American Numbering Plan (NANP).

Area code 406 covers all of Montana, including major cities such as Billings, Bozeman, Butte, Great Falls, Helena, and Missoula. These cities represent significant economic and cultural centers within the state.

As of 2013, area code 406 had approximately 1.7 million available phone numbers. Montana utilizes number pooling to manage these numbers efficiently, and projections suggest sufficient numbers will be available until 2031.

Montana transitioned to mandatory 10-digit dialing on October 24, 2021. This change was implemented to accommodate the new 988 National Suicide Prevention Lifeline, ensuring both services could function effectively.

Number pooling is a resource management strategy used in Montana to allocate phone numbers more efficiently within area code 406. This practice helps delay the need for introducing additional area codes in the state.

Area code 406 supports a range of services including landline, wireless, and VoIP. Major carriers like AT&T, Verizon, and T-Mobile operate in the area, alongside local providers like Hot Springs Telephone Company and Northern Telephone Cooperative.

You can find information and contact the Montana Public Service Commission (PSC) through their official website, psc.mt.gov. They are the regulatory body responsible for overseeing telecommunications in Montana, including area code 406.

The article provides latitude and longitude coordinates for major Montana cities within area code 406, including Billings, Bozeman, Butte, Great Falls, Helena, and Missoula. This information helps identify their precise locations.

With the implementation of number pooling, Montana's area code 406 is expected to have enough phone numbers to meet demand until at least 2031. The Montana Public Service Commission continues to manage the area code effectively.