The 703 area code is a significant part of Virginia's telecommunications landscape, primarily serving the Northern Virginia region adjacent to Washington, D.C.

Serving Northern Virginia: Established in 1947, the 703 area code originally covered all of Virginia. It now primarily serves the Northern Virginia region, including cities like Alexandria, Fairfax, and Arlington.

Region of Economic and Political Significance: This area is known for its proximity to the nation's capital, hosting numerous government agencies, technology companies, and defense contractors.

Overlay with Area Code 571: To meet increasing phone number demands, the 571 area code was introduced as an overlay in 2000, sharing the same geographic area as 703.