Išdaggen was formerly part of the German Empire. In the German Empire, the place was called Strigengrund *.
The place is now called NN and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ischdaggen | German Empire | Insterburg | 1914 |
| Strigengrund * | German Empire | Insterburg | 1939 |
| Išdaggen | Under Soviet administration | Kaliningrad | 1945 |
| NN | Russian Federation | Černjahovsk | 1992 |