Area Code 410-479 located in FEDERALSBURG, CAROLINE, MD, more detail is as below. Place NPA (Numbering Plan Area) : 410 NXX (Local Number Prefix) : 479 City : FEDERALSBURG County : CAROLINE State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 24011 LATA (Local Access Transport Area) : 242 Rate Center : DENTON ZIP Code Count : 101 ZIP Code Frequency : 3 ZIP Code : 21632 Other Information NPANXX : 410479 Switch CLLI (Common Language Location Identifier) : DNTNMDDTRS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON MARYLAND, INC. OCN (Operating Company Number) : 9212 Coverage Area Name : DENTON Latitude : 38.8861 Longitude : -75.8272 ‹ previous : 410-478 next › : 410-479 Telephone Number List 410-479-0000 ~ 410-479-9999