Main city: Sterling
Timezone: Eastern
Phone type: Landline
Operator: Paetec Communications

Sterling, Virginia, a census-designated place in Loudoun County, Virginia. The population as of the 2010 United States Census was 27,822. It is located northwest of Herndon, east of Ashburn, and west of Great Falls, and includes part of Dulles International Airport and the former AOL corporate headquarters. Sterling is also home to the National Weather Service Weather Forecast Office (serving the Baltimore-Washington Metropolitan Area), as well as the Sterling Field Support Center, the National Weather Service test, research, and evaluation center for weather instruments. ^source

North American telephone area codes 703 and 571 are area codes which serve most telephone installations in northern Virginia, including the independent cities of Alexandria, Fairfax, Falls Church, Manassas, and Manassas Park, as well as Arlington, Fairfax counties, and parts of Fauquier, Loudoun, Prince William, and Stafford counties. 703 was created as one of the original 86 North American area codes in October 1947 and originally served the entire Commonwealth of Virginia. Area code 571 was created on March 1, 2000 as an overlay to 703. ^source