About this number
(406) 686 is a landline based telephone number operated by Qwest Corporation and is located in zip code 59018 in the city of Clyde Park, Montana, which is in Park 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 686. It has an Operating Company Number (OCN) of 9636. A Common Language Location Identifier (CLLI) of CLPKMTMARS1. As well as a Local access and transport area (LATA) of 650. Zip code 59018 has a population of 602 as of the 2010 census.