Area Code 240-509 located in GAMBRILLS, ANNE ARUNDEL, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 509 City : GAMBRILLS County : ANNE ARUNDEL State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 3/31/2008 FIPS (Federal Information Processing Standards) : 24003 LATA (Local Access Transport Area) : 238 Rate Center : WSNG238Z14 ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 21054 Other Information NPANXX : 240509 County Population : 0 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 : BANDWIDTH.COM CLEC, LLC - MD OCN (Operating Company Number) : 071F Coverage Area Name : CROFTON Latitude : 38.9930 Longitude : -76.6759 ‹ previous : 240-508 next › : 240-510 Telephone Number List 240-509-0000 ~ 240-509-9999