| City: | DPO, Armed Forces Europe |
| Timezone: | --%> |
| Local Time: | 8:31:00 PM |
| Population: | No Population Data |
| Area Code: | -- |
| Classification: | Military Only |
| Quick Link: |
DPO AE 09820 serves U.S. personnel in Sinop, a city on Turkey's Black Sea coast. Sinop historically hosted a significant U.S. intelligence facility during the Cold War, monitoring Soviet communications and activities.
The Sinop facility was one of the closest U.S. listening posts to the Soviet Union, providing valuable intelligence during the Cold War era. The strategic location on the Black Sea made it ideal for signals intelligence collection.
Following the Cold War, the U.S. presence at Sinop was reduced, though some activities may continue. The DPO designation suggests diplomatic or liaison personnel may still utilize this postal code.
Mail routes through Newark before transport to Turkey's Black Sea coast. The relatively remote location may result in longer transit times than for facilities near major Turkish cities.

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Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.