About this number
(406) 638 is a landline based telephone number operated by Project Telephone Co., Inc. and is located in zip code 59022 in the city of Crow Agency, Montana, which is in Big Horn County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 406 and Network Numbering Exchange (NXX - also known as a prefix) of 638. It has an Operating Company Number (OCN) of 2250. A Common Language Location Identifier (CLLI) of CWAGMTXCDS0. As well as a Local access and transport area (LATA) of 650. Zip code 59022 has a population of 1,945 as of the 2010 census.