Area Code 240-339 located in LOTHIAN, ANNE ARUNDEL, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 339 City : LOTHIAN County : ANNE ARUNDEL State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 2000-10-31 FIPS (Federal Information Processing Standards) : 24003 LATA (Local Access Transport Area) : 236 Rate Center : WSNGTNZN15 ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20711 Other Information NPANXX : 240339 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASJDCDBDS1 MSA CBSA (Core Based Statistical Area) : Baltimore-Towson, MD MSA CBSA Code (Core Based Statistical Area) : 12580 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 : UPPER MARLBORO Latitude : 38.8180 Longitude : -76.7541 ‹ previous : 240-338 next › : 240-339 Telephone Number List 240-339-0000 ~ 240-339-9999