Area Code 314 History:
Area code 314 was put into service. Area code 314 has been split 2 times. In 1950 area code 314 was split to form a portion of area code 417. In 1996 area code 314 was split to form area code 573. In 1999 area code 314 was split to form area code 636.
Counties in Missouri within area code 314 include:
Saint Louis County.
Major cities or places in Missouri within area code 314 include:
Area code 314 serves St. Louis and the larger suburb communities of Ferguson, Florissant, Hazelwood, Kirkwood, Maryland Heights, Mehville, Oakville, Overland, Spanish Lake, St. Louis, University City and Webster Grove, as well as, many smaller communities near St. Louis.