Missouri area codes cover different regions across the state, helping identify local phone numbers in cities such as St. Louis, Kansas City, Springfield, Columbia, and surrounding areas. This guide explains Missouri area codes, their locations, overlays, time zones, and key cities.
Area code 975 is a Missouri area code that covers the Kansas City metro area and western Missouri. It is not a standalone region; it’s an “overlay” code that shares the exact same geographic footprint as area code 816. It became active on October 13, 2023, and calls in the region require 10-digit dialing (area…
The 816 area code serves Kansas City, Missouri, and 15 counties across northwestern Missouri, including Independence, Lee’s Summit, St. Joseph, and Blue Springs. It sits in the Central Time Zone and has shared its territory with the 975 overlay since October 13, 2023, which means every local call now requires 10-digit dialing. What Is the…
The 660 area code serves northern and western Missouri, including Sedalia, Chillicothe, Kirksville, and Marshall. Missouri created area code 660 on October 12, 1997, by splitting it from area code 816 to meet the growing demand for phone numbers caused by the rise of cell phones and pagers. What Is the 660 Area Code? (At…
The 636 area code covers the western and southern suburbs of St. Louis, Missouri, including St. Charles, O’Fallon, St. Peters, Wentzville, Chesterfield, and Washington. It was created in 1999 by splitting off from area code 314 and runs on Central Time. It is not a scam or premium-rate code; it’s a standard U.S. landline and…
The 573 area code covers the eastern half of Missouri outside the St. Louis metro area, including Columbia, Jefferson City, Cape Girardeau, Rolla, Hannibal, and Sikeston, and uses Central Time. It has been in service since January 7, 1996, and since 2024, it has shared its region with an overlay code, 235. 573 Area Code…
The 557 area code serves St. Louis, Missouri, and nearby areas such as Florissant, Chesterfield, Kirkwood, Webster Groves, Clayton, and University City. It uses the Central Time Zone. Officials activated 557 on August 12, 2022, as an overlay for the existing 314 area code. What Is the 557 Area Code? The area code 557 is…
The 417 area code serves southwestern Missouri, including Springfield, Joplin, Branson, Nixa, Ozark, Carthage, Neosho, Lebanon, and West Plains. It was created in 1950 and covers the Central Time Zone. As of 2026, it remains a single, non-overlay area code with no announced split. What Is the 417 Area Code? The area code 417 is…
The 314 area code serves St. Louis, Missouri, and its inner-ring suburbs, including Florissant, Kirkwood, University City, Maryland Heights, Ferguson, and Webster Groves. The area code ranks among the original 86 area codes created in 1947 and operates in the Central Time Zone. Today, area code 314 shares its geographic area with area code 557…
The 235 area code is a Missouri telephone area code that covers the same territory as 573, including Columbia, Jefferson City, Cape Girardeau, Rolla, Hannibal, and Poplar Bluff. It launched on March 24, 2024, as an overlay code (not a split), meaning both 573 and 235 numbers now serve the same region side by side….