Area Code 240-268 located in BRENTWOOD, PRINCE GEORGES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 268 City : BRENTWOOD County : PRINCE GEORGES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1999-02-27 FIPS (Federal Information Processing Standards) : 24033 LATA (Local Access Transport Area) : 236 Rate Center : WSNGTNZN10 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20722 Other Information NPANXX : 240268 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASHDCRKDS3 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 : ALLEGIANCE TELECOM, INC. - MD OCN (Operating Company Number) : 8992 Coverage Area Name : ROCKVILLE Latitude : 39.0867 Longitude : -77.1600 ‹ previous : 240-268 next › : 240-269 Telephone Number List 240-268-0000 ~ 240-268-9999