| General Information about Area Code 571 | |
|---|---|
| Country | United States |
| State / Province / Territory | Virginia |
| Major City | Herndon |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 571-521 | Reston | Fairfax | Landline |
| 571-425 | Fort Myer | Arlington | Wireless |
| 571-437 | Reston | Fairfax | Wireless |
| 571-249 | Fort Myer | Arlington | Wireless |
| 571-347 | Reston | Fairfax | Wireless |
| 571-219 | Arlington | Arlington | Wireless |
| 571-765 | Falls Church | Falls Church City | Wireless |
| 571-639 | - | - | - |
| 571-999 | Vienna | Fairfax | Landline |
| 571-204 | Falls Church | Falls Church City | Landline |
| 571-528 | Leesburg | Loudoun | Wireless |
| 571-271 | Leesburg | Loudoun | Landline |
| 571-431 | Alexandria | Alexandria City | Landline |
| 571-442 | Leesburg | Loudoun | Wireless |
| 571-288 | Woodbridge | Prince William | Wireless |
| 571-284 | Haymarket | Prince William | Landline |
| 571-428 | Manassas | Prince William | Wireless |
| 571-374 | Woodbridge | Prince William | Landline |
| 571-283 | Reston | Fairfax | Wireless |
| 571-665 | Herndon | Fairfax | Landline |