NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now abandoned and the area belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Christiansthal | Austro-Hungary | Reichenberg | before the Treaty of Saint-Germain |
| Kristiánov | Czechoslovakia | Liberec (venkov) | after the Treaty of Saint-Germain |
| Christiansthal | Czechoslovakia | Liberec (venkov) | after the Treaty of Saint-Germain |
| NN | German Empire | Reichenberg | 1938 |
| NN | Czechoslovakia | Liberec | 1945 |
| - aufgelassen - | Czechoslovakia | Jablonec nad Nisou | 1992 |
| - aufgelassen - | Czech Republic | Jablonec nad Nisou | 1993 |