Area Code 340-228 located in ST THOMAS, SAINT THOMAS, VI, more detail is as below. Place NPA (Numbering Plan Area) : 340 NXX (Local Number Prefix) : 228 City : ST THOMAS County : SAINT THOMAS State : VI (None) NXX Use Type : Wireless NXX Intro Version : 4/16/2010 FIPS (Federal Information Processing Standards) : 78030 LATA (Local Access Transport Area) : 822 Rate Center : CHTAMSTTHS ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 00802 Other Information NPANXX : 340228 County Population : 0 Time Zone : Atlantic (GMT -04:00) Observes Daylight Saving Time : No Company : COMMNET WIRELESS, LLC OCN (Operating Company Number) : 5736 Coverage Area Name : CHARLOTTE AMALIE Latitude : 18.3495 Longitude : -64.9416 ‹ previous : 340-227 next › : 340-244 Telephone Number List 340-228-0000 ~ 340-228-9999