Area code 660
Telephone area code for northern and western Missouri, United States
Area code 660 is a telephone area code in the U.S. state of Missouri. It was created on October 12, 1997, when it was split from area code 816. It covers a large portion of northern and west-central Missouri. Some of the major cities and towns in this area code include Sedalia, Kirksville, Warrensburg, Marshall, and Maryville.
