Area Code 443-713 located in COLUMBIA, HOWARD, MD, more detail is as below. Place NPA (Numbering Plan Area) : 443 NXX (Local Number Prefix) : 713 City : COLUMBIA County : HOWARD State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 9/7/2011 FIPS (Federal Information Processing Standards) : 24027 LATA (Local Access Transport Area) : 238 Rate Center : COLUMBIA ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 21045 Other Information NPANXX : 443713 County Population : 0 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 : PEERLESS NETWORK OF MARYLAND, LLC OCN (Operating Company Number) : 568G Coverage Area Name : COLUMBIA Latitude : 39.2181 Longitude : -76.8552 ‹ previous : 443-712 next › : 443-714 Telephone Number List 443-713-0000 ~ 443-713-9999