Area Code 314-375 located in SAINT LOUIS, SAINT LOUIS, MO, more detail is as below. Place NPA (Numbering Plan Area) : 314 NXX (Local Number Prefix) : 375 City : SAINT LOUIS County : SAINT LOUIS State : MO (Missouri) NXX Use Type : Landline NXX Intro Version : 2000-10-31 FIPS (Federal Information Processing Standards) : 29189 LATA (Local Access Transport Area) : 520 Rate Center : OAKVILLE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 63129 Other Information NPANXX : 314375 County Population : 0 Switch CLLI (Common Language Location Identifier) : OLVEMO01DS0 MSA CBSA (Core Based Statistical Area) : St. Louis, MO-IL MSA CBSA Code (Core Based Statistical Area) : 41180 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WINDSTREAM NUVOX MISSOURI INC. - MO OCN (Operating Company Number) : 4891 Coverage Area Name : OAKVILLE Latitude : 38.4477 Longitude : -90.3172 ‹ previous : 314-374 next › : 314-378 Telephone Number List 314-375-0000 ~ 314-375-9999