About this number
(517) 439 is a landline based telephone number operated by Ameritech Michigan and is located in zip code 49242 in the city of Hillsdale, Michigan, which is in Hillsdale County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 517 and Network Numbering Exchange (NXX - also known as a prefix) of 439. It has an Operating Company Number (OCN) of 9323. A Common Language Location Identifier (CLLI) of HLDLMIMNRSA. As well as a Local access and transport area (LATA) of 346. Zip code 49242 has a population of 15,248 as of the 2010 census.