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Montana telephone prefix
Montana (MT) Area Code Active Prefix Listing Latest Comments for Area Code November 15, pm Friendly Call October 22, am This . Dec 12, (KPAX) In , Montanans will need to dial “” when calling any Montana phone number, whether or not they're in-state. . Montana Telephone Exchanges ; *, ROUNDUP ; *, COLUMBUS ; , COLUMBUS ; , ROUNDUP ; , HELENA. Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York All active telephone prefixes (NXX) in Montana (MT) Area Code Free reverse phone and cell number lookup directory information Report telemarketers, spammers, complaints and unwanted phone calls. * forsyth: * helena: missoula: helena: great falls: billings: * missoula: * billings: * bozeman: * seeley lake: * kalispell Missing: prefix. Oct 1, Some seven-digit phone numbers in Montana's area code begin with To prevent misdialing the Lifeline, all local calls in Montana.