Area Code 301-684 located in INDIAN HEAD, CHARLES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 684 City : INDIAN HEAD County : CHARLES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 24017 LATA (Local Access Transport Area) : 236 Rate Center : INDIANHEAD ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20640 Other Information NPANXX : 301684 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASHDCTTDS0 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 : TELEPORT COMMUNICATIONS AMERICA, LLC - DC OCN (Operating Company Number) : 7529 Coverage Area Name : INDIAN HEAD Latitude : 38.6020 Longitude : -77.1680 ‹ previous : 301-683 next › : 301-685 Telephone Number List 301-684-0000 ~ 301-684-9999