Area Code 301-889 located in HARWOOD, ANNE ARUNDEL, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 889 City : HARWOOD County : ANNE ARUNDEL State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 24003 LATA (Local Access Transport Area) : 238 Rate Center : WSNG238Z14 ZIP Code Count : 8 ZIP Code Frequency : 6 ZIP Code : 20776 Other Information NPANXX : 301889 County Population : 0 Switch CLLI (Common Language Location Identifier) : GLVLMDGLRS0 MSA CBSA (Core Based Statistical Area) : Baltimore-Towson, MD MSA CBSA Code (Core Based Statistical Area) : 12580 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON MARYLAND, INC. OCN (Operating Company Number) : 9212 Coverage Area Name : GLENN DALE Latitude : 38.9839 Longitude : -76.8136 ‹ previous : 301-889 next › : 301-889 Telephone Number List 301-889-0000 ~ 301-889-9999