Area Code 301-246 located in INDIAN HEAD, CHARLES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 246 City : INDIAN HEAD County : CHARLES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 24017 LATA (Local Access Transport Area) : 236 Rate Center : NANJEMOY ZIP Code Count : 61 ZIP Code Frequency : 11 ZIP Code : 20640 Other Information NPANXX : 301246 County Population : 0 Switch CLLI (Common Language Location Identifier) : NJMYMDNJRS0 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 : VERIZON MARYLAND, INC. OCN (Operating Company Number) : 9212 Coverage Area Name : NANJEMOY Latitude : 38.4567 Longitude : -77.2178 ‹ previous : 301-245 next › : 301-246 Telephone Number List 301-246-0000 ~ 301-246-9999