Area Code 410-450 located in ELLICOTT CITY, HOWARD, MD, more detail is as below. Place NPA (Numbering Plan Area) : 410 NXX (Local Number Prefix) : 450 City : ELLICOTT CITY County : HOWARD State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 24027 LATA (Local Access Transport Area) : 238 Rate Center : BALTIMORE ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 21042 Other Information NPANXX : 410450 Switch CLLI (Common Language Location Identifier) : BLTMMDCH1DD 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 : BALTIMORE Latitude : 39.2938 Longitude : -76.6132 ‹ previous : 410-449 next › : 410-451 Telephone Number List 410-450-0000 ~ 410-450-9999