Area Code 240-865 located in HALETHORPE, BALTIMORE, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 865 City : HALETHORPE County : BALTIMORE State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 2001-03-03 FIPS (Federal Information Processing Standards) : 24005 LATA (Local Access Transport Area) : 238 Rate Center : WSNGTNZN14 ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 21227 Other Information NPANXX : 240865 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLTMMDSNDS1 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 Overlay : L Company : LEVEL 3 COMMUNICATIONS, LLC - MD OCN (Operating Company Number) : 6119 Coverage Area Name : BALTIMORE Latitude : 39.1803 Longitude : -76.7232 ‹ previous : 240-864 next › : 240-865 Telephone Number List 240-865-0000 ~ 240-865-9999