Area Codes in Missouri
9 active area codes · United States · Central Time
Missouri has 9 active area codes in the North American Numbering Plan: 235, 314, 417, 557, 573, 636, 660, 816, 975. All area codes in Missouri observe Central Time.
9
Area Codes
1
Time Zone
6
Overlay Codes
235
Cardwell
Overlay
Central
314
Oakville
Overlay
Central
417
Springfield
Central
557
Creve Coeur
Overlay
Central
573
Columbia
Overlay
Central
636
O'Fallon
Central
660
Sedalia
Central
816
Kansas City
Overlay
Central
975
Kansas City
Overlay
Central
About Missouri Area Codes
Missouri currently has 9 active area codes in the North American Numbering Plan: 235, 314, 417, 557, 573, 636, 660, 816, 975. These operate in the Central Time time zone.