Deutsche Telekom

Deutsche Telekom AG is the largest European telecommunications company and is headquartered in Bonn, Germany.

Deutsche Telekom includes many subsidiaries, all with names starting with "T-".

* T-Home (formerly T-Com), a legacy telephone and fixed network carrier and IPTV operator
* T-Online, an internet service provider (ISP)
* T-Mobile, a cell phone provider
* T-Systems, a business division focused on providing to large customers