Montana will likely have at least 14 more years as "the 406." In 2013, 88 percent of the possible 406 numbers had been assigned and the area code was expected to be spent by 2018. Two years ago, the ...
All local calls in Montana must be dialed with the 406 area code to connect beginning Oct. 24 due to changing federal regulations. Montana’s 406 area code currently allows seven-digit dialing to ...
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