Virginia · Eastern Time
703 Area Code
Area code 703 is in Virginia, serving northern Virginia suburbs of Washington, D.C., including Arlington, Alexandria and Fairfax. It is in the Eastern Time zone. It shares its territory with overlay code 571, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 703 area code?
703 is a Virginia area code covering northern Virginia suburbs of Washington, D.C., including Arlington, Alexandria and Fairfax. In the wider directory it sits in the South region.
Cities in the 703 area code
- Arlington
- Alexandria
- Reston
- Herndon
- Fairfax
- Falls Church
- Manassas
- Leesburg
- Vienna
- McLean
- Woodbridge
- Annandale
- Centreville
- Dale City
Counties served by 703
Fairfax County, Arlington County, Loudoun County and Prince William County.
703 overlay codes and dialing
The 703 territory is covered by an overlay of 2 area codes: 571, 703. All of them serve the same geographic area, and the original code is 703. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 703 area code
703 is one of the original area codes assigned in 1947, when AT&T and Bell Laboratories created the North American Numbering Plan and divided the country into the first 86 numbering plan areas. It has served the Arlington area ever since, with 571 later added as an overlay to supply more numbers.
Is 703 a scam or spam risk?
703 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 703 number on your screen is no guarantee the caller is in Arlington, VA or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Virginia area codes
Explore more
See every code in Virginia, compare codes across the South region, or view all Eastern Time codes. You can also browse the 7XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
703 area code FAQ
Where is the 703 area code?
The 703 area code is in Virginia, covering northern Virginia suburbs of Washington, D.C., including Arlington, Alexandria and Fairfax, in the South region.
What cities are in the 703 area code?
Cities in the 703 area code include Arlington, Alexandria, Reston, Herndon, Fairfax, Falls Church, Manassas, Leesburg, Vienna and McLean.
What time zone is 703 in?
703 is in the Eastern Time zone.
What is the overlay for the 703 area code?
703 shares its territory with 571. Both codes (571, 703) serve the same area, so 10-digit dialing is required for every call.
When did the 703 area code start?
703 went into service on January 1, 1947 as one of the original 1947 North American area codes.
Do I have to dial 10 digits for 703?
Yes. Because 703 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 703 a toll-free or premium code?
No. 703 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.