Browse Montana area codes and open individual area code pages for location, major cities, time zone, introduction date, overlay or related codes, and dialing information.
About Montana Area Codes
Area Codes Atlas currently lists 1 published area code page associated with Montana. Use the directory above to open each code page and review its location, listed cities, time zone, introduction date, and related or overlay code information. The introduction-year data available in this directory includes 1947.
Cities Listed for Montana Area Codes
Cities appearing in the current Montana area-code records include Billings, Bozeman, Butte, Great Falls, and Helena. The exact cities vary by area code, so open an individual code page for its full city list.
Frequently Asked Questions About Montana Area Codes
How many Montana area codes are listed?
Area Codes Atlas currently has 1 published area code page associated with Montana.
Which cities are listed for Montana area codes?
Current records include cities such as Billings, Bozeman, Butte, Great Falls, Helena, and Missoula. City coverage differs by area code, so use the directory above for code-specific details.
How can I find information about a specific Montana area code?
Select an area code from the directory above. Each code page includes the available location, city, time zone, introduction-date, related-code, and dialing information.
Counts, cities, time zones, and introduction-year summaries on this page are generated from the current published Area Codes Atlas directory and may change as the directory is updated.