NN was formerly part of the German Empire. In the German Empire, the place was called Franzdorf.
The place is now called NN and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Groß Franzdorf | German Empire | Insterburg | 1939 |
| Franzdorf | German Empire | Insterburg | 1939 |
| Gross Francdorf | Under Soviet administration | Kaliningrad | 1945 |
| NN | Russian Federation | Černjahovsk | 1992 |