Area Code 314-380 located in SAINT LOUIS, SAINT LOUIS, MO, more detail is as below. Place NPA (Numbering Plan Area) : 314 NXX (Local Number Prefix) : 380 City : SAINT LOUIS County : SAINT LOUIS State : MO (Missouri) NXX Use Type : Landline NXX Intro Version : 1999-10-13 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 : 314380 County Population : 0 Switch CLLI (Common Language Location Identifier) : MRHGMO02DS0 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 : BIRCH TELECOM OF MISSOURI, INC. OCN (Operating Company Number) : 8665 Coverage Area Name : OAKVILLE Latitude : 38.4477 Longitude : -90.3172 ‹ previous : 314-378 next › : 314-381 Telephone Number List 314-380-0000 ~ 314-380-9999