Area Code 904-203 located in MIDDLEBURG, CLAY, FL, more detail is as below. Place NPA (Numbering Plan Area) : 904 NXX (Local Number Prefix) : 203 City : MIDDLEBURG County : CLAY State : FL (Florida) NXX Use Type : Landline NXX Intro Version : 9/2/2011 FIPS (Federal Information Processing Standards) : 12019 LATA (Local Access Transport Area) : 452 Rate Center : MIDDLEBURG ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 32068 Other Information NPANXX : 904203 MSA CBSA (Core Based Statistical Area) : Jacksonville, FL MSA CBSA Code (Core Based Statistical Area) : 27260 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : SBC INTERNET SERVICES, INC. OCN (Operating Company Number) : 516C Coverage Area Name : MIDDLEBURG Latitude : 30.0665 Longitude : -81.8664 ‹ previous : 904-202 next › : 904-205 Telephone Number List 904-203-0000 ~ 904-203-9999