Area Code 240-724 located in FORT WASHINGTON, PRINCE GEORGES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 724 City : FORT WASHINGTON County : PRINCE GEORGES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 2000-10-31 FIPS (Federal Information Processing Standards) : 24033 LATA (Local Access Transport Area) : 236 Rate Center : WSHNGTNZN6 ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20744 Other Information NPANXX : 240724 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASJDCDBDS1 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 Overlay : L Company : CAVALIER EAST LLC - MD OCN (Operating Company Number) : 4820 Coverage Area Name : MOUNT RAINIER Latitude : 38.9073 Longitude : -77.0330 ‹ previous : 240-723 next › : 240-724 Telephone Number List 240-724-0000 ~ 240-724-9999