Area Code 314-219 located in SAINT CHARLES, SAINT CHARLES, MO, more detail is as below. Place NPA (Numbering Plan Area) : 314 NXX (Local Number Prefix) : 219 City : SAINT CHARLES County : SAINT CHARLES State : MO (Missouri) NXX Use Type : Landline NXX Intro Version : 1995-02-11 FIPS (Federal Information Processing Standards) : 29183 LATA (Local Access Transport Area) : 520 Rate Center : LADUE ZIP Code Count : 3 ZIP Code Frequency : 100 ZIP Code : 63304 Other Information NPANXX : 314219 County Population : 0 Switch CLLI (Common Language Location Identifier) : HVTRMO65RS4 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 : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : LADUE Latitude : 38.6582 Longitude : -90.3818 ‹ previous : 314-218 next › : 314-220 Telephone Number List 314-219-0000 ~ 314-219-9999