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U.S. Area Codes by State: Missouri (314)

Area Codes for Missouri: 314, 417, 573, 636, 660, 816

314

Affton, Bridgeton, Clayton, Creve Coeur, Ferguson, Florissant, Hazelwood, Kirkwood, Ladue, Mehlville, Oakville, Overland, Riverview, Sappington, Spanish Lake, St Louis, Webster Groves

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