Area Code 410-320 located in HANOVER, ANNE ARUNDEL, MD, more detail is as below. Place NPA (Numbering Plan Area) : 410 NXX (Local Number Prefix) : 320 City : HANOVER County : ANNE ARUNDEL State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 24003 LATA (Local Access Transport Area) : 238 Rate Center : ANNAPOLIS ZIP Code Count : 1 ZIP Code Frequency : 25 ZIP Code : 21076 Other Information NPANXX : 410320 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : ANNAPOLIS Latitude : 38.9847 Longitude : -76.4961 ‹ previous : 410-319 next › : 410-320 Telephone Number List 410-320-0000 ~ 410-320-9999