NN was formerly part of the German Empire. In the German Empire, the place was called Kololeč.
The place is now called NN and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kolloletsch | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Kololeč | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Kololeč | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Kolloletsch | German Empire | Raudnitz an der Elbe | 1939 |
| Kololeč | German Empire | Raudnitz an der Elbe | 1939 |
| Kololeč | Czechoslovakia | Lovosice | 1945 |
| Kololeč | Czechoslovakia | Litoměřice | 1992 |
| NN | Czech Republic | Litoměřice | 1993 |