Medion is the mobile virtual network enabler (MVNE) for Aldi Talk in Germany.

In 2018, it was estimated that there would be up to eight million customers in Germany, making the company the market leader among mobile virtual network operators.

On 7 April 2017, it was announced that Aldi Talk would cease all operations in Belgium by 6 June.

[3] The cause of this decision was the coming in to effect of an anti-terrorism measure taken by the Belgian government, banning the sale and use of anonymous SIM cards, instead requiring the mobile operators to identify and register each of their clients.

[4] Because Aldi Talk did not have the capabilities to perform these tasks, a decision was taken to cease all operations in Belgium.