Area Code 240-706 located in BETHESDA, MONTGOMERY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 706 City : BETHESDA County : MONTGOMERY State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 3/26/2009 FIPS (Federal Information Processing Standards) : 24031 LATA (Local Access Transport Area) : 236 Rate Center : WSHNGTNZN3 ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 20816 Other Information NPANXX : 240706 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 : LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC. OCN (Operating Company Number) : 0822 Coverage Area Name : CHEVY CHASE Latitude : 38.9458 Longitude : -77.0632 ‹ previous : 240-705 next › : 240-707 Telephone Number List 240-706-0000 ~ 240-706-9999