| 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 |
|---|---|---|---|
| 571-594 | Mc Lean | Fairfax | Landline |
| 571-375 | Herndon | Fairfax | Landline |
| 571-336 | Springfield | Fairfax | Landline |
| 571-346 | Reston | Fairfax | Wireless |
| 571-445 | Haymarket | Prince William | Landline |
| 571-436 | Reston | Fairfax | Wireless |
| 571-275 | Arlington | Arlington | Wireless |
| 571-429 | Fort Myer | Arlington | Wireless |
| 571-286 | Arlington | Arlington | Wireless |
| 571-485 | Reston | Fairfax | Wireless |
| 571-989 | Dumfries | Prince William | Landline |
| 571-335 | Fort Myer | Arlington | Wireless |
| 571-267 | Reston | Fairfax | Wireless |
| 571-352 | Fairfax | Fairfax | - |
| 571-319 | Alexandria | Alexandria City | Landline |
| 571-237 | Arlington | Arlington | Wireless |
| 571-307 | Vienna | Fairfax | Landline |
| 571-426 | Reston | Fairfax | Wireless |
| 571-835 | Falls Church | Falls Church City | Wireless |
| 571-533 | Arlington | Arlington | Landline |