Area code and exchange code is assigned to every constituent of city in the United States. The area and exchange codes of the telephone can be used to find information about a region. Area code 616 and exchange code 438 is assigned to Lansing. The latitude and longitude corresponding to 42.74667 and -84.54981 can be used to find an area on the map. Halo Wirelessoperates most of the land lines in United States.