Area Code 314-667 located in SAINT LOUIS, SAINT LOUIS CITY, MO, more detail is as below. Place NPA (Numbering Plan Area) : 314 NXX (Local Number Prefix) : 667 City : SAINT LOUIS County : SAINT LOUIS CITY State : MO (Missouri) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 29510 LATA (Local Access Transport Area) : 520 Rate Center : ST LOUIS ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 63110 Other Information NPANXX : 314667 County Population : 0 Switch CLLI (Common Language Location Identifier) : STLSMOPLDS0 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 : LEVEL 3 COMMUNICATIONS, LLC - MO OCN (Operating Company Number) : 4932 Coverage Area Name : SAINT LOUIS Latitude : 38.6303 Longitude : -90.1901 ‹ previous : 314-666 next › : 314-669 Telephone Number List 314-667-0000 ~ 314-667-9999