Telefónica Deutschland Holding AG, together with its subsidiaries, provides integrated telecommunication services to private and business customers in Germany. It offers fiber-to-the-home lines; broadband services, consisting of VDSL, cable, fiber, and fixed mobile substitution services; and machine to machine communication and managed connectivity services. The company offers digital services in the fields of Internet of Things, as well as O2 Tv and O2 cloud. In addition, it provides access to infrastructure and services for its wholesale partners. Further, the company provides its products and services through a network of independently operated franchise and premium partner shops, and online and telesales channels, as well as indirect selling channels, such as partnerships and co-operations with retailers. It markets its products and services under the O2, Blau, AY YILDIZ, Ortel Mobile, and Telefonica brand names. The company was formerly known as Telefónica Germany Verwaltungs GmbH and changed its name to Telefónica Deutschland Holding AG in September 2012. The company is based in Munich, Germany. Telefónica Deutschland Holding AG operates as a subsidiary of Telefonica Germany Holdings Limited.