Area Code 314-223 located in SAINT LOUIS, SAINT LOUIS, MO, more detail is as below. Place NPA (Numbering Plan Area) : 314 NXX (Local Number Prefix) : 223 City : SAINT LOUIS County : SAINT LOUIS State : MO (Missouri) NXX Use Type : Wireless NXX Intro Version : 1997-01-11 FIPS (Federal Information Processing Standards) : 29189 LATA (Local Access Transport Area) : 520 Rate Center : KIRKWOOD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 63122 Other Information NPANXX : 314223 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNCHMOAQCM0 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 : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : KIRKWOOD Latitude : 38.5835 Longitude : -90.4152 ‹ previous : 314-222 next › : 314-224 Telephone Number List 314-223-0000 ~ 314-223-9999