NN was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Brzezinka (Mysłowice-Brzezinka) * and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neu-Brzezinka | German Empire | Kattowitz | before the Versailles Treaty |
| NN | Poland | Katowice | after the Versailles Treaty |
| NN | German Empire | Kattowitz | 1939 |
| NN | Poland | Stalinogród | 1945 |
| Brzezinka (Mysłowice-Brzezinka) * | Poland | Katowice | 1992 |