What is 816 area code?

The 816 area code is located in the state of Missouri in the United States. It covers the Kansas City metropolitan area, including the city of Kansas City and its surrounding suburbs. The 816 area code was one of the original area codes established in 1947 when the North American Numbering Plan was implemented. It was split in 1997 to create the new 660 area code to accommodate the growing population in the region. The 816 area code is currently served by several telecommunications companies and provides both landline and mobile phone service to residents and businesses in the area.