| 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 |
|---|---|---|---|
| 571-245 | Arlington | Arlington | Wireless |
| 571-484 | Reston | Fairfax | Wireless |
| 571-266 | Reston | Fairfax | Landline |