NN was formerly part of the German Empire. In the German Empire, the place was called Nová Báň.
The place is now called NN and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neubaň | Austro-Hungary | Poděbrad | before the Treaty of Saint-Germain |
| Báň Nová | Austro-Hungary | Poděbrad | before the Treaty of Saint-Germain |
| Nová Baň | Czechoslovakia | Poděbrady | after the Treaty of Saint-Germain |
| Neu-Bain | German Empire | Podiebrad | 1939 |
| Nová Báň | German Empire | Podiebrad | 1939 |
| Nová Báň | Czechoslovakia | Poděbrady | 1945 |
| NN | Czechoslovakia | Střední Čechy | 1992 |