About this number
(810) 639 is a landline based telephone number operated by Centurytel Midwest-Midwest INC and is located in zip code 48457 in the city of Montrose, Michigan, which is in Genesee County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 810 and Network Numbering Exchange (NXX - also known as a prefix) of 639. It has an Operating Company Number (OCN) of 671. A Common Language Location Identifier (CLLI) of MTRSMIXIDS0. As well as a Local access and transport area (LATA) of 340. Zip code 48457 has a population of 8,436 as of the 2010 census.