About this number
(517) 721 is a landline based telephone number operated by Ameritech Michigan and is located in zip code 48821 in the city of Dimondale, Michigan, which is in Eaton 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 721. It has an Operating Company Number (OCN) of 9323. A Common Language Location Identifier (CLLI) of DMDLMIDDRS0. As well as a Local access and transport area (LATA) of 346. It was first assigned for usage on 03/19/2002. Zip code 48821 has a population of 5,836 as of the 2010 census.