J-uknaten was formerly part of the German Empire. In the German Empire, the place was called Meißnersrode.
The place is now called Illovajskoe and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jucknaten | German Empire | Schloßberg (Ostpr.) | 1938 |
| Meißnersrode | German Empire | Schloßberg (Ostpr.) | 1939 |
| J-uknaten | Under Soviet administration | Kaliningrad | 1945 |
| Illovajskoe | Russian Federation | Krasnoznamensk | 1992 |