Area Code 240-976 located in DAMASCUS, MONTGOMERY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 976 City : DAMASCUS County : MONTGOMERY State : MD (Maryland) NXX Intro Version : 10/17/2005 FIPS (Federal Information Processing Standards) : 24031 Rate Center : DAMASCS236 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20872 Other Information NPANXX : 240976 County Population : 0 Switch CLLI (Common Language Location Identifier) : LARLMDEH00T 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 Company : BALTIMORE-WASHINGTON TELEPHONE BWT OCN (Operating Company Number) : 8697 Latitude : None Longitude : None ‹ previous : 240-965 next › : 240-979 Telephone Number List 240-976-0000 ~ 240-976-9999