406-216 phone numbers

Numbers 406-216-0000 to 406-216-9999 are assigned to 3 Rivers Telephone Cooperative, Inc. in Great Falls, MT. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 406-216