Area Code 240-248 located in RIDGE, SAINT MARYS, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 248 City : RIDGE County : SAINT MARYS State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1999-02-27 FIPS (Federal Information Processing Standards) : 24037 LATA (Local Access Transport Area) : 236 Rate Center : RIDGE ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 20680 Other Information NPANXX : 240248 County Population : 0 Switch CLLI (Common Language Location Identifier) : RSTNVA31DS0 MSA CBSA (Core Based Statistical Area) : Lexington Park, MD MSA CBSA Code (Core Based Statistical Area) : 30500 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Overlay : L Company : GLOBAL NAPS SOUTH, INC. - MD OCN (Operating Company Number) : 2554 Coverage Area Name : RIDGE Latitude : 38.1151 Longitude : -76.3665 ‹ previous : 240-247 next › : 240-249 Telephone Number List 240-248-0000 ~ 240-248-9999