Area Code 301-859 located in FORT WASHINGTON, PRINCE GEORGES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 859 City : FORT WASHINGTON County : PRINCE GEORGES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 2000-06-13 FIPS (Federal Information Processing Standards) : 24033 LATA (Local Access Transport Area) : 240 Rate Center : OAKLAND ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20744 Other Information NPANXX : 301859 County Population : 0 Switch CLLI (Common Language Location Identifier) : FRDRMDFRJMD MSA CBSA (Core Based Statistical Area) : Washington-Arlington-Alexandria, DC-VA-MD-WV MSA CBSA Code (Core Based Statistical Area) : 47900 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : LEVEL 3 COMMUNICATIONS, LLC - MD OCN (Operating Company Number) : 6119 Coverage Area Name : OXON HILL Latitude : 38.8014 Longitude : -76.9912 ‹ previous : 301-858 next › : 301-859 Telephone Number List 301-859-0000 ~ 301-859-9999