Area code 660 serves northern and west-central Missouri, excluding major metro areas. It includes cities such as Sedalia, Kirksville, Warrensburg, and Chillicothe. Established in 1997 from a split of the 816 area code, 660 was introduced to serve rural and small-town communities across a large geographic region. The area’s economy is driven by agriculture, manufacturing, and education, including institutions like the University of Central Missouri. 660 remains a standalone area code and is vital for ensuring connectivity in less densely populated parts of the state. It is a symbol of Missouri’s rural strength and local pride.