Missouri Area Codes
7 area codes in Missouri, United States. Country code: +1. Find area codes by city and region.
All Missouri Area Codes
| Area Code | Major Cities | Region |
|---|---|---|
| 314 | St. Louis | East |
| 417 | Springfield, Joplin | Southwest |
| 573 | Columbia, Jefferson City | Central |
| 636 | St. Louis suburbs | East |
| 660 | Kirksville, Sedalia | North Central |
| 816 | Kansas City | West |
| 975 | Kansas City (overlay) | West |
About Missouri Area Codes
Missouri uses 7 area codes under the North American Numbering Plan (NANP), serving Columbia, Jefferson City, Joplin, Kansas City, Kirksville, Sedalia and 3 other communities. Each code follows the 3-digit format and covers a defined geographic region within the state.
Overlay Codes in Missouri
Missouri has adopted 1 overlay code(s): 975. An overlay assigns a new area code to the same geographic region as an existing code, so both codes serve the same area. When overlay codes are active, callers must dial all 10 digits (area code + number) even for local calls within the same region.
Major Cities and Their Area Codes
Find which area code serves each major city in Missouri.
| City / Community | Area Code(s) |
|---|---|
| Columbia | 573 |
| Jefferson City | 573 |
| Joplin | 417 |
| Kansas City | 816 |
| Kirksville | 660 |
| Sedalia | 660 |
| Springfield | 417 |
| St. Louis | 314 |
| St. Louis suburbs | 636 |
How to Call Missouri
Within the US: dial 1 + area code + 7-digit number (10-digit dialing applies where overlays are active).
From Canada or the Caribbean: the same NANP format applies — 1 + area code + number.
From abroad: dial your country's exit code (011 from the US, 00 from most countries, or + on mobile), then 1, then the Missouri area code and number.
Example (from the UK): 00 1 314 XXX XXXX
Data source: North American Numbering Plan Administration (NANPA), ITU-T E.164. Area code assignments change with new overlays — verify with your carrier before dialing. NANPA