Area Code 240-383 located in ROCKVILLE, MONTGOMERY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 383 City : ROCKVILLE County : MONTGOMERY State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 24031 LATA (Local Access Transport Area) : 236 Rate Center : WSHNGTNZN2 ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 20850 Other Information NPANXX : 240383 County Population : 0 Switch CLLI (Common Language Location Identifier) : GRNBMDAJCM1 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 : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : CHEVY CHASE Latitude : 38.9458 Longitude : -77.0632 ‹ previous : 240-382 next › : 240-384 Telephone Number List 240-383-0000 ~ 240-383-9999
