About this number
(406) 237 is a landline based telephone number operated by Qwest Corporation and is located in zip code 59101 in the city of Billings, Montana, which is in Yellowstone 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 237. It has an Operating Company Number (OCN) of 9636. A Common Language Location Identifier (CLLI) of BLNGMTMADS1. As well as a Local access and transport area (LATA) of 650. Zip code 59101 has a population of 39,562 as of the 2010 census.