Area Code 240-375 located in INDIAN HEAD, CHARLES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 375 City : INDIAN HEAD County : CHARLES State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 24017 LATA (Local Access Transport Area) : 236 Rate Center : WSHNGTNZN5 ZIP Code Count : 1 ZIP Code Frequency : 20 ZIP Code : 20640 Other Information NPANXX : 240375 County Population : 0 Switch CLLI (Common Language Location Identifier) : SLSPMDEJCM1 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 : SPRINT SPECTRUM L.P. - MD OCN (Operating Company Number) : 4098 Coverage Area Name : CAPITOL HEIGHTS Latitude : 38.8841 Longitude : -76.9175 ‹ previous : 240-375 next › : 240-375 Telephone Number List 240-375-0000 ~ 240-375-9999