Missouri Area Codes
The state of Missouri, USA is currently served by a total of 9 area codes:
Overlaying area codes
These Missouri area codes overlay (cover the same geographic area). The first code listed is the parent code. Overlay area codes are added when no more phone numbers are available in an existing Numbering Plan Area.
- 314/557
- 573/235
- 816/975
Larger Missouri cities and their area codes
City | County | Area Codes |
---|---|---|
Ballwin | St Louis | 636 |
Blue Springs | Jackson | 816, 975 |
Cape Girardeau | Cape Girardeau | 573, 235 |
Chesterfield | St Louis | 636 |
Columbia | Boone | 573, 235 |
Florissant | St Louis | 314, 557 |
Independence | Jackson | 816, 975 |
Jefferson City | Cole | 573, 235 |
Joplin | Jasper | 417 |
Kansas City | Platte | 816, 975 |
Lee's Summit | Jackson | 816, 975 |
Liberty | Clay | 816, 975 |
O'Fallon | St Charles | 636 |
Oakville | St Louis | 314, 557 |
Springfield | Greene | 417 |
St Charles | St Charles | 636 |
St Joseph | Buchanan | 816, 975 |
St Louis | St Louis | 314, 557 |
St Peters | St Charles | 636 |
University City | St Louis | 314, 557 |
Wentzville | St Charles | 636 |