Missouri area codes
Missouri has 9 area codes: 235, 314, 417, 557, 573, 636, 660, 816, 975.
- 235 — Columbia
- 314 — St. Louis
- 417 — Springfield
- 557 — St. Louis
- 573 — Columbia
- 636 — St. Louis
- 660 — Sedalia
- 816 — Kansas City
- 975 — Kansas City
Area codes by city in Missouri
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.