314 area code — information, time zone, map 314 is an area code located in the state of Missouri, US The largest city it serves is Florissant Find out where 314 area code zone from, which states, counties and cities it covers Get the most exact information on time zones here
Area codes 314 and 557 - Wikipedia Area codes 314 and 557 are telephone area codes in the North American Numbering Plan (NANP) in the U S state of Missouri, serving the city of St Louis and most of its inner-ring suburbs in neighboring St Louis County
Area Code 314 phone numbers - Whitepages Browse area code 314 phone numbers, prefixes and exchanges The 314 area code serves Saint Louis, Maryland Heights, Hazelwood, Bridgeton, Florissant, covering 29 ZIP codes in 4 counties