NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Libchavy and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| NN (Libchavy) | Austro-Hungary | Landskron | before the Treaty of Saint-Germain |
| NN | Czechoslovakia | Lanškroun | after the Treaty of Saint-Germain |
| NN | German Empire | Landskron | 1938 |
| NN | Czechoslovakia | Ústí nad Orlicí | 1945 |
| Libchavy | Czechoslovakia | Ústí nad Orlicí | 1992 |
| Libchavy | Czech Republic | Ústí nad Orlicí | 1993 |