20166 Zip code is used for Dulles Area Code City in Loudoun County, Virginia in Usa. The ZIP Codes / Postal Codes are Used by USPS (United States Postal Service known as “Post Office”, “ Usa Mail”, or” Postal Service”, an independent agency of the United States federal government responsible for providing postal service in the United States). Below is the detail for 20166, Dulles Area Code City.
| Zip Code | : | 20166 |
| City Name | : | Dulles Area Code |
| County Name | : | Loudoun County |
| State Name | : | Virginia |
| Country Name | : | USA |
| Area Code | : | 703 |
| Time Zone | : | EST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |