NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Srní u České Lípy and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rehdörfel | Austro-Hungary | Böhmisch-Leipa | before the Treaty of Saint-Germain |
| Srní | Czechoslovakia | Česká Lípa | after the Treaty of Saint-Germain |
| Rehdörfel | Czechoslovakia | Česká Lípa | after the Treaty of Saint-Germain |
| NN | German Empire | Böhmisch Leipa | 1938 |
| NN | Czechoslovakia | Česká Lípa | 1945 |
| Srní u České Lípy | Czechoslovakia | Česká Lípa | 1992 |
| Srní u České Lípy | Czech Republic | Česká Lípa | 1993 |