Missouri area codes
Missouri has 9 area codes, all on UTC−6 standard time. Each card shows the main cities; open one for its overlays, history and a free lookup.
Perguntas frequentes
Missouri area code questions
How many area codes does Missouri have?
Missouri has 9 area codes in service: 235, 314, 417, 557, 573, 636, 660, 816 and 975.
What was the original Missouri area code?
314 and 816 were among the original area codes created in 1947.
What is the newest area code in Missouri?
235, in service since March 24, 2024 as an overlay on 573.
What time zone is Missouri area codes in?
Central.
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Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.