571 area code — Washington, VA geographic
Phone numbers beginning 571 are registered to the Washington area of Virginia (Eastern time zone). The code entered service on March 1, 2000. It is part of the 571/703 overlay complex — these codes share the same territory. Note that porting and VoIP mean a 571 number can be used from anywhere — the code marks where the number was assigned.
619 central-office prefixes are currently active in this code, spread across 38 code-holding carriers. Thousands-block pooling applies to 591 prefixes, so a single prefix can belong to several carriers. Its prefixes map to 19 distinct rate centers.
Use this page to decode where 571 numbers come from — and remember that spoofing means the screen can lie about everything except your own caution.
571 was created from 703 in 2000.
NANPA projects numbering capacity for the 571/703 complex to exhaust in 1Q 2031.
Dialing: 10D locally, 10D to other codes.
Largest localities in 571
| Locality (rate center) | Active prefixes | Also served by |
|---|---|---|
| Washington Zone 8 | 124 | 703 |
| Washington Zone 17 | 110 | 703 |
| Herndon | 73 | 703 |
| Washington Zone 19 | 65 | 703 |
| Leesburg | 46 | 703 |
| Manassas | 40 | 703 |
| Dale City | 28 | 703 |
| Engleside | 27 | 703 |
| Occoquan | 21 | 703 |
| Triangle | 15 | 703 |
FAQ
Where is a 571 number from?
571 is assigned to Washington and surrounding areas of Virginia in the Eastern time zone. The three digits after the area code (the prefix) narrow it down to a rate center.
Is 571 a toll-free number?
No. 571 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Why do 703 and 571 cover the same place?
They are overlays: when a code runs low on numbers, a new code is added over the same territory instead of splitting it. The 571/703 complex shares one service area, and local calls are dialed with 10 digits.