Area Code 636-219 located in SAINT CHARLES, SAINT CHARLES, MO, more detail is as below. Place NPA (Numbering Plan Area) : 636 NXX (Local Number Prefix) : 219 City : SAINT CHARLES County : SAINT CHARLES State : MO (Missouri) NXX Use Type : Wireless NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 29183 LATA (Local Access Transport Area) : 520 Rate Center : ST CHARLES ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 63303 Other Information NPANXX : 636219 Switch CLLI (Common Language Location Identifier) : STLVMOOH1MD 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 : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : SAINT CHARLES Latitude : 38.7670 Longitude : -90.4905 ‹ previous : 636-219 next › : 636-220 Telephone Number List 636-219-0000 ~ 636-219-9999