Area Code 301-531 located in CLARKSVILLE, HOWARD, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 531 City : CLARKSVILLE County : HOWARD State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 24027 LATA (Local Access Transport Area) : 236 Rate Center : WSHNGTNZN4 ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 21029 Other Information NPANXX : 301531 County Population : 0 Switch CLLI (Common Language Location Identifier) : LNHMMDADDS0 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 : STARPOWER COMMUNICATIONS, LLC - MD OCN (Operating Company Number) : 8832 Coverage Area Name : HYATTSVILLE Latitude : 38.9518 Longitude : -76.9502 ‹ previous : 301-530 next › : 301-531 Telephone Number List 301-531-0000 ~ 301-531-9999
