Area Code 301-310 located in CATONSVILLE, BALTIMORE, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 310 City : CATONSVILLE County : BALTIMORE State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1996-07-01 FIPS (Federal Information Processing Standards) : 24005 LATA (Local Access Transport Area) : 238 Rate Center : LAUREL238 ZIP Code Count : 1 ZIP Code Frequency : 2 ZIP Code : 21228 Other Information NPANXX : 301310 County Population : 0 Switch CLLI (Common Language Location Identifier) : CLMAMDOBDS0 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 : COLUMBIA Latitude : 39.1885 Longitude : -76.8313 ‹ previous : 301-310 next › : 301-310 Telephone Number List 301-310-0000 ~ 301-310-9999
