Use our free Montana reverse phone lookup service to search any cell/mobile, landline, or VoIP number. Check whether an unknown number has been reported for making spam or robocalls in 76,435 Do Not Call and robocall complaints reported to FTC from Montana.
406 covers everything from Billings to Glacier National Park. Montana's entire 147,000 square miles operate under one area code.
Montana has approximately 1.46 million active phone numbers. Cell phones are the most popular type, with about 1.2 million users, while traditional landlines continue to decrease with about 104,000 connections statewide. Internet phone services have around 152,000 subscribers.
In September 2026, Montana residents filed 744 complaints to the FTC about phone numbers making unwanted calls and text messages, up 39% from the previous month.
Montana phone numbers recently reported for making unwanted sales calls or robocalls:
| Phone Number | FTC Complaints | Last Reported |
|---|---|---|
| (406) 777-0570 | ||
| (406) 255-7961 | ||
| (406) 616-4115 | ||
| (406) 508-9786 | ||
| (406) 222-7037 | ||
| (406) 743-9259 | ||
| (406) 543-5094 | ||
| (406) 833-2672 | ||
| (406) 506-5358 | ||
| (406) 415-8643 |
Look up phone numbers and browse the phone directory for the largest cities in Montana.
If a caller claims to be from a government office in Montana, or you need an official number, these government directories let you check it at the source.
The State of Montana Government Telephone Directory is built for browsing: by agency, by city in alphabetical order, or through the toll-free listings. All numbers use area code 406. The general information line is 406-444-2511 and the TTY line is 406-444-1421.
The city view helps when you want the state office in your own town instead of a headquarters number. To find an individual, follow the page's link to the State Employee Search.
The Montana State Employee Directory finds state employees by first name or last name. At least two characters are required in one of the name fields, and an agency menu narrows the search from All Agencies to a single agency.
The page footer lists (406) 444-2000 and an email support link, along with search instructions. For office numbers by agency or city, use directory.mt.gov.
Yes. Montana does not restrict the personal use of reverse phone lookup services. The state's privacy law has been in effect since October 1, 2024, giving residents rights to opt out of and delete their data from lookup databases. The Fair Credit Reporting Act (FCRA) prohibits using lookup results for employment, tenant, or credit decisions in every state. Montana's MT-CDPA provides additional state-level protections.
The Montana Consumer Data Privacy Act (MT-CDPA, Mont. Code Ann. § 30-14-3001 et seq., enacted SB 351, 2023) took effect October 1, 2024 and was amended in 2025. Note the correct abbreviation is MT-CDPA - both Montana's and Minnesota's laws were previously misabbreviated as "MCDPA" in some sources. Montana residents can opt out of personal data sales and targeted advertising, and have rights to access, correct, delete, and port their data within a 45-day response window. Nonprofits are generally exempt.
Under the Montana Consumer Data Privacy Act (MCDPA), you can opt out of the sale of your personal details and request their deletion. Visit each reverse lookup site and use their opt-out form to submit a request.
A phone number linked to a business name does not always mean the call is genuine. According to U.S. Census data, there are over 42,015 business establishments in Montana. To confirm a specific company exists, search the Montana Business Entity Search, the state’s official business entity registry.
Not inherently, but Montana's mix matters. The state has 1.2 million mobile subscriptions and only 152,000 VoIP lines, which means caller ID is more reliable here than in states with heavy VoIP adoption. Landlines still account for 104,000 subscriptions, a higher proportion than most states.