| 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 |
|---|---|---|---|
| 571-395 | Falls Church | Fairfax | Landline |
| 571-421 | Falls Church | Fairfax | Landline |
| 571-299 | Reston | Fairfax | Landline |
| 571-418 | Fort Myer | Arlington | Landline |
| 571-409 | Lorton | Fairfax | Wireless |
| 571-645 | Arlington | Arlington | Wireless |
| 571-302 | Arlington | Arlington | Wireless |
| 571-256 | Arlington | Arlington | Landline |
| 571-262 | Reston | Fairfax | Landline |
| 571-272 | Arlington | Arlington | Landline |
| 571-270 | Arlington | Arlington | Landline |
| 571-982 | Falls Church | Fairfax | Wireless |
| 571-477 | Lorton | Fairfax | Wireless |
| 571-641 | Falls Church | Falls Church City | Landline |
| 571-392 | Herndon | Fairfax | Landline |
| 571-384 | Arlington | Arlington | Wireless |
| 571-303 | Arlington | Arlington | Landline |
| 571-276 | Arlington | Arlington | Wireless |
| 571-373 | Reston | Fairfax | Wireless |
| 571-246 | Leesburg | Loudoun | Landline |