About this number
(231) 678 is a landline based telephone number operated by Acd Telecom, Inc. - Mi and is located in zip code 49503 in the city of Grand Rapids, Michigan, which is in Kent County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 231 and Network Numbering Exchange (NXX - also known as a prefix) of 678. It has an Operating Company Number (OCN) of 3535. A Common Language Location Identifier (CLLI) of GDRPMIBLXTZ. As well as a Local access and transport area (LATA) of 348. It was first assigned for usage on 01/19/2005. Zip code 49503 has a population of 35,940 as of the 2010 census.