Area Code 410-455 located in BALTIMORE, BALTIMORE CITY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 410 NXX (Local Number Prefix) : 455 City : BALTIMORE County : BALTIMORE CITY State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 24510 LATA (Local Access Transport Area) : 238 Rate Center : CATONSVL ZIP Code Count : 47 ZIP Code Frequency : 5 ZIP Code : 21229 Other Information NPANXX : 410455 Switch CLLI (Common Language Location Identifier) : CTVLMDCTDS0 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 : CATONSVILLE Latitude : 39.2744 Longitude : -76.7321 ‹ previous : 410-455 next › : 410-455 Telephone Number List 410-455-0000 ~ 410-455-9999