Area Code 410-227 located in BALTIMORE, BALTIMORE CITY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 410 NXX (Local Number Prefix) : 227 City : BALTIMORE County : BALTIMORE CITY State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 1995-07-04 FIPS (Federal Information Processing Standards) : 24510 LATA (Local Access Transport Area) : 238 Rate Center : CATONSVL ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 21230 Other Information NPANXX : 410227 Switch CLLI (Common Language Location Identifier) : HNVAMDATCM1 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 : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : CATONSVILLE Latitude : 39.2695 Longitude : -76.7438 ‹ previous : 410-226 next › : 410-228 Telephone Number List 410-227-0000 ~ 410-227-9999