Zone code 703 was formally placed into administration. Region codes 703 and 571 serve northeastern Virginia which incorporates numerous rural areas of Washington, D.C. counting the more significant urban areas and networks of Alexandria, Annandale, Arlington, Burke, Centreville, Chantilly, Dale City, Fairfax, Franconia, Groveton, Herndon, Lake Ridge, Leesburg, Manassas, Mclean, Mount Vernon, Oakton, Reston, Springfield, West Springfield, and Woodbridge notwithstanding numerous littler networks inside the territory codes 703 and 571 assistance zone. Virginia Area Code Map  Territory codes 707 and 571 are the North American Numbering Plan phone region codes for Northern Virginia, including the free urban communities of Alexandria, Fairfax, Falls Church, Manassas, and Manassas Park, just as the entirety of Arlington and Fairfax provinces and parts of Fauquier, Loudoun, Prince William, and Stafford areas. On June 24, 1973, territory code 707 went through its previously split when the eastern segment of the state became zone code 804. Lenient dialling of 703 proceeded over the Commonwealth until January 1, 1974, In 2000 707 area code was overlaid with zone code 571.  was limited toward the northern and western districts of Virginia—from Arlington in the north to the Tennessee and Kentucky fringe—while everything from Danville toward the east was reassigned to 804. A comparable choice was made just about twenty years after the fact when Maryland's territory code 301 was part; Baltimore and focuses east were relegated to region code 410 to permit government offices on the Maryland side of the metro to keep their present numbers.