Area Code 240-262 located in CLARKSBURG, MONTGOMERY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 262 City : CLARKSBURG County : MONTGOMERY State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 24031 LATA (Local Access Transport Area) : 236 Rate Center : DAMASCUS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20871 Other Information NPANXX : 240262 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHTNVADHDS1 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. OCN (Operating Company Number) : 6664 Coverage Area Name : CALLAWAY Latitude : 38.2394 Longitude : -76.4909 ‹ previous : 240-262 next › : 240-263 Telephone Number List 240-262-0000 ~ 240-262-9999