where does the territory kalingrad belong to

Kaliningrad belongs to Russia. It is a Russian exclave on the Baltic Sea, located between Poland and Lithuania.

Quick context

• It is the westernmost region of Russia.
• It is separated from mainland Russia by other countries, which is why it’s often described as an exclave.
• The area is sometimes discussed in European security and transit disputes because of its location.

Simple answer

If you mean “which country controls it right now?”, the answer is Russia.