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| Introduced | 11 November 2004 |
|---|---|
| Website | congstar |
Congstar GmbH is a mobile network operator headquartered in Cologne, Germany.
The company is a subsidiary of Telekom Deutschland, and specializes in discount mobile phone service marketed to younger people.
In August 2014, Congstar's services had approximately 3.4 million users.1
In December 2019 the brand had over five million customers.2
References
References
- Winter, Marie-Anne (18 August 2014). "congstar ist die Nr. 3 im deutschen Discount-Markt" [Congstar is number three in the German discount market]. teltarif.de (in German). Retrieved 22 November 2014.
- "Congstar-Kunden wechseln automatisch zur Telekom – Die Marke Congstar bleibt" [Customers of congstar changing automatically to Telekom - brand exist]. handyflash.de (in German). 1 December 2020. Retrieved 18 October 2020.