Ay (Mosel) was formerly part of the German Empire. In the German Empire, the place was called Aich.
The place is now called Ay-sur-Moselle and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ay (Mosel) | German Empire | Metz | before the Versailles Treaty |
| Aich | German Empire | Metz | before the Versailles Treaty |
| Ay-sur-Moselle | France | Moselle | after the Versailles Treaty |
| Aich a. d. Mosel | German Empire | Metz | 1940 |
| Aich | German Empire | Metz | 1940 |
| Ay-sur-Moselle | France | Moselle | 1945 |
| Ay-sur-Moselle | France | Moselle | 1993 |