Geographic Regions and Area Codes

Area Code 816 is located in Missouri and covers 72 cities, including major ones like Kansas City, Independence, Saint Joseph, Blue Springs, and Liberty. It spans 15 counties—Jackson, Buchanan, Cass, Clay, Platte, and others—serving the Kansas City metropolitan area and parts of north-western Missouri.

Area Code 975 was activated on October 13, 2023, as an overlay to meet the growing demand for phone numbers in the region. This overlay requires all calls to use 10-digit dialing, and businesses in the 816 region now have access to numbers with either area code. According to the Missouri Public Service Commission, existing 816 numbers remain unchanged, while new phone lines may receive 975 numbers.