Amateur Radio Callsigns in ZIP Code: 20670
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| WA3ZGD | JOHNSON, JOHN A | PATUXENT RIVER | MD | United States |
| KI6ZFE | Chang, Rayming | Patuxent River | MD | United States |
| KG3PAX | WADDELL, DOUGLAS G | Patuxent River | MD | United States |
| KM6JUD | Ash, David J | Patuxent River | MD | United States |
| N3AK | SHELDON, JONATHAN G | Patuxent River River | MD | United States |