Area Code 240-503 located in ISSUE, CHARLES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 503 City : ISSUE County : CHARLES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 10/17/2011 FIPS (Federal Information Processing Standards) : 24017 LATA (Local Access Transport Area) : 236 Rate Center : LXTNPKGRML ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 20645 Other Information NPANXX : 240503 County Population : 0 MSA CBSA (Core Based Statistical Area) : Washington-Arlington-Alexandria, DC-VA-MD-WV MSA CBSA Code (Core Based Statistical Area) : 47900 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 : NEWBURG Latitude : 38.3521 Longitude : -76.9322 ‹ previous : 240-502 next › : 240-504 Telephone Number List 240-503-0000 ~ 240-503-9999