About this number
(406) 386 is a landline based telephone number operated by Triangle Telephone Cooperative and is located in zip code 59520 in the city of Big Sandy, Montana, which is in Chouteau 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 386. It has an Operating Company Number (OCN) of 2257. A Common Language Location Identifier (CLLI) of HPILMTXCRS1. As well as a Local access and transport area (LATA) of 648. Zip code 59520 has a population of 1,030 as of the 2010 census.