Area code 406 - Wikipedia
Area code 406 is the telephone area code in the North American Numbering Plan for the entire U.S. state of Montana. It has been Montana's only area code since the American Telephone and Telegraph Company created a nationwide telephone numbering plan in 1947.
406 Area Code - National Phone Number Registry
2025年1月10日 · Area code 406 is located in Montana. Get area code location and dialing plans for all phone prefixes in area code 406.
Montana, United States - Area Phone Codes
Area codes list for the United States, state Montana. Reverse phone lookup, search by area code or region. Local time and map of Montana.
Montana Area Codes Map - Maps of World
Montana area codes map gives information about all the area codes of Montana state along with their counties list.
406 Area Code - Map, Phone Lookup, Time Zone - Wirefly
Area code 406 serves the state of Montana. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 406 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.
406 Area Code - Location, Map, Current Time, Prefixes
Area code 406 is located in Montana. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
List of Montana Area Codes - Check by City and County
2025年1月2日 · Below are the list Montana state area codes by city and county listed by alphabetical order. Find Montana area codes by city or lookup which cities belong to an area code. Area code 406 covers the entire state of Montana.
Montana Area Codes - Map, Current Time, Area Codes by City
Get a full list of Montana area codes. Check out the area’s map, the current time, and area codes listed by city.
Montana Area Codes - 50states.com
Find Montana area codes by city or lookup which cities belong to an area code.
406 Area Code - USA.com™
Where is 406 area code? Area code 406 is the area code for Montana. It is Montana's only area code. Cities that use 406 area code and a coverage map included as well.
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