NN was formerly part of the German Empire. In the German Empire, the place was called Merlenbach-Freimengen.
The place is now called Freyming-Merlebach and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| NN (Merlenbach-Freimengen) | German Empire | Forbach | before the Versailles Treaty |
| NN | France | Moselle | after the Versailles Treaty |
| Merlenbach-Freimengen | German Empire | Sankt Avold | 1940 |
| NN | France | Moselle | 1945 |
| Freyming-Merlebach | France | Moselle | 1993 |