NN was formerly part of the German Empire. In the German Empire, the place was called Chrastín.
The place is now called NN and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Chrastin | Austro-Hungary | Laun | before the Treaty of Saint-Germain |
| Chrastín | Austro-Hungary | Laun | before the Treaty of Saint-Germain |
| Chrastín | Czechoslovakia | Louny | after the Treaty of Saint-Germain |
| Chrastin | German Empire | Laun | 1939 |
| Chrastín | German Empire | Laun | 1939 |
| Chrastín | Czechoslovakia | Louny | 1945 |
| Chrastín | Czechoslovakia | Louny | 1992 |
| NN | Czech Republic | Louny | 1993 |