Area Code 240-249 located in MECHANICSVILLE, SAINT MARYS, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 249 City : MECHANICSVILLE 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 : MECHANCSVL ZIP Code Count : 10 ZIP Code Frequency : 100 ZIP Code : 20659 Other Information NPANXX : 240249 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASHDCTTDS0 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 : TELEPORT COMMUNICATIONS AMERICA, LLC - DC OCN (Operating Company Number) : 7529 Coverage Area Name : MECHANICSVILLE Latitude : 38.4422 Longitude : -76.7391 ‹ previous : 240-248 next › : 240-250 Telephone Number List 240-249-0000 ~ 240-249-9999