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314
Missouri (MO)
By Area Code
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Cities Covered by
314
Area Code
Arnold
Ballwin
Barnhart
Bridgeton
Cedar Hill
Chesterfield
Columbia
Crystal City
De Soto
Earth City
Elsah
Eureka
Farmington
Fenton
Florissant
Fort Leonard Wood
Frohna
Gravois Mills
Gray Summit
Grover
Hazelwood
High Ridge
House Springs
Imperial
Jefferson City
Kansas City
Kewanee
Kimmswick
Lake Saint Louis
Maryland Heights
O Fallon
Ozark
Pacific
Robertsville
Rolla
Saint Ann
Saint Charles
Saint Clair
Saint Louis
Saint Peters
Union
Valley Park
Villa Ridge
Warrenton
Washington
Wentzville
Westchester
Related Area Codes
314
,
417
,
573
,
636
,
618
,
630
,
708
,
816
,
913