Tele2 AB is a provider of mobile and fixed connectivity, telephony, data network services, TV, streaming and global Internet of things services, amongst others, to consumers and enterprises. It is headquartered in Kista Science City, Stockholm, Sweden. It is a major mobile network operator in Sweden, Estonia, Latvia and Lithuania. The company initially founded Tele2 Russia, but later sold all its operations, later rebranding and changing the name to "t2". Tele2 started as a telecommunications company in Sweden in 1993 by the company Investment AB Kinnevik.
https://en.wikipedia.org/wiki/Tele2