NN was formerly part of the German Empire. In the German Empire, the place was called Mistrowitz-Koniakau.
The place is now called NN and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| NN (Mistrowitz-Koniakau) | Austro-Hungary | Teschen/Cieszyn,Český Těšín | before the Treaty of Saint-Germain |
| NN | Czechoslovakia | Český Těšín | after the Treaty of Saint-Germain |
| NN | Poland | Cieszyn/Český Těšín | 1938 |
| Mistrowitz-Koniakau | German Empire | Teschen | 1939 |
| Mistřovice | Czechoslovakia | Český Těšín | 1945 |
| NN | Czechoslovakia | Karviná | 1992 |
| NN | Czech Republic | Karviná | 1993 |