Area Code 410-240 located in BALTIMORE, BALTIMORE CITY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 410 NXX (Local Number Prefix) : 240 City : BALTIMORE County : BALTIMORE CITY State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 10/6/2011 FIPS (Federal Information Processing Standards) : 24510 LATA (Local Access Transport Area) : 238 Rate Center : BALTIMORE ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 21201 Other Information NPANXX : 410240 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : BALTIMORE Latitude : 39.3002 Longitude : -76.6147 ‹ previous : 410-239 next › : 410-241 Telephone Number List 410-240-0000 ~ 410-240-9999