Area Code 340-712 located in FREDERIKSTED, SAINT CROIX, VI, more detail is as below. Place NPA (Numbering Plan Area) : 340 NXX (Local Number Prefix) : 712 City : FREDERIKSTED County : SAINT CROIX State : VI (None) NXX Use Type : Landline NXX Intro Version : 1997-10-11 FIPS (Federal Information Processing Standards) : 78010 LATA (Local Access Transport Area) : 822 Rate Center : CHNSTDSTCR ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 00840 Other Information NPANXX : 340712 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNBUVIXACG1 Time Zone : Atlantic (GMT -04:00) Observes Daylight Saving Time : No Company : VIRGIN ISLANDS TEL. CORP. DBA INNOVATIVE TELEPHONE OCN (Operating Company Number) : 3300 Coverage Area Name : ST CROIX Latitude : 17.7468 Longitude : -64.7881 ‹ previous : 340-693 next › : 340-712 Telephone Number List 340-712-0000 ~ 340-712-9999