Area Code 240-233 located in ISSUE, CHARLES, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 233 City : ISSUE County : CHARLES State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1999-02-27 FIPS (Federal Information Processing Standards) : 24017 LATA (Local Access Transport Area) : 236 Rate Center : TOMPKINSVL ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20645 Other Information NPANXX : 240233 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASHDCTTDS0 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 : TELEPORT COMMUNICATIONS AMERICA, LLC - DC OCN (Operating Company Number) : 7529 Coverage Area Name : NEWBURG Latitude : 38.3521 Longitude : -76.9322 ‹ previous : 240-232 next › : 240-233 Telephone Number List 240-233-0000 ~ 240-233-9999