571 Virginia: Northern Virginia’s Modern Area CodeUpdated 4 days ago

Area code 571 was introduced on March 1, 2000, as an overlay to the long-standing 703 area code. It was created to meet the growing demand for phone numbers in Northern Virginia, a region that has seen rapid population and business expansion. By introducing 571 as an overlay, residents and businesses with existing 703 numbers did not have to change their numbers, while new connections could be assigned 571.

The 571 area code falls under the Eastern Time Zone (ET), observing both standard and daylight saving time.

Regions Covered

• Independent cities such as Alexandria, Falls Church, Manassas, and Manassas Park
• Counties such as Arlington, Fairfax, Loudoun, and parts of Prince William

Why It Matters

• Continuity: The overlay allowed 703 users to keep their numbers while adding more capacity.
• Expansion: It enabled continued growth in mobile, landline, and business phone usage.
• Local Identity: A 571 number associates individuals and businesses with the vibrant Northern Virginia region.

Business Use of 571 Numbers

• Building local trust and credibility with customers
• Increasing response rates, as people are more likely to answer local calls
• Supporting marketing campaigns targeted toward the Northern Virginia and Washington, D.C. area