Canadial Know Who Called
← Area code 406

406-228 phone numbers

Numbers 406-228-0000 to 406-228-9999 are assigned to Nemont Tel Coop Inc in Glasgow, MT. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 406-228-0xxx, 406-228-1xxx, 406-228-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 406-228