About this number
(406) 216-3890 is a landline based telephone number operated by 3 Rivers Telephone Cooperative and is located in zip code 59401 in the city of Great Falls, Montana, which is in Cascade County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 406, a Network Numbering Exchange (NXX - also known as a prefix) of 216 and a subscriber number of 3890. It has an Operating Company Number (OCN) of 3924. A Common Language Location Identifier (CLLI) of GRFLMTMAHG1. As well as a Local access and transport area (LATA) of 648. Zip code 59401 has a population of 13,774 as of the 2010 census.