State · 9 area codes

Missouri area codes

Missouri has nine area codes serving the St. Louis and Kansas City metros plus Springfield and greater Missouri.

A · Metros

Major metro areas

St. Louis Kansas City Springfield Columbia

B · Directory

Every code opens its profile — codes with a full write-up show their place; the rest show live numbering data while their detailed profile is added.

235 314 417 557 573 636 660 816 975

Sources

List of Missouri area codes (secondary)

Compiled by North American Numbers, last checked 2026-09-19. How this is made.