| List of Area Codes in Missouri | ||
|---|---|---|
| 417 Area Code | 573 Area Code | 660 Area Code |
| 816 Area Code | ||
| County List of Area Code 314 |
|---|
| Saint Louis Area code |
| County List of Area Code 636 | ||
|---|---|---|
| Franklin Area code | Jefferson Area code | Lincoln Area code |
| Montgomery Area code | Saint Charles Area code | Saint Francois Area code |
| Saint Louis Area code | Warren Area code |
