Area Code 301-234 located in CLINTON, PRINCE GEORGES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 234 City : CLINTON County : PRINCE GEORGES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1997-01-11 FIPS (Federal Information Processing Standards) : 24033 LATA (Local Access Transport Area) : 236 Rate Center : WSNGTNZN16 ZIP Code Count : 79 ZIP Code Frequency : 86 ZIP Code : 20735 Other Information NPANXX : 301234 County Population : 0 Switch CLLI (Common Language Location Identifier) : ALTWMDATDS0 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 : FORT WASHINGTON Latitude : 38.7768 Longitude : -76.9559 ‹ previous : 301-234 next › : 301-235 Telephone Number List 301-234-0000 ~ 301-234-9999