T-Mobile is the brand name used by some of the mobile communications subsidiaries of the German telecommunications company Deutsche Telekom AG in the Czech Republic, Poland and the United States.
Deutsche Telekom AG is a German telecommunications company headquartered in Bonn and is the largest telecommunications provider in Europe by revenue. It was formed in 1995 when Deutsche Bundespost, a state monopoly at the time, was privatized. Since then, Deutsche Telekom has consistently featured among FortuneMagazine's top Global 500 companies by revenue, with its ranking as of 2023 at number 79. In 2023, the company was ranked 41st in the Forbes Global 2000. The company operates several subsidiaries worldwide, including the mobile communications brand T-Mobile. It is the world's fifth-largest telecommunications company by revenue.
Celcom Axiata Berhad is the oldest mobile telecommunications provider in Malaysia. Celcom is a member of the Axiata group of companies. Celcom was merged with Digi to form CelcomDigi on 1 December 2022.
Slovak Telekom is the convergent telco provider with the largest internet, fixed-line, digital TV, ICT and mobile services portfolio. The company is wholly owned subsidiary of Deutsche Telekom AG.
Magyar Telekom Nyrt. is one of the leading Hungarian telecommunications service provider company. It is a subsidiary of Deutsche Telekom.
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, only leasing the use of its brand name.
Dialog Axiata PLC, is one of Sri Lanka's largest telecommunications service providers, and the country's largest mobile network operator with over 17 million subscribers which amounts to 57% of the Sri Lankan mobile market. Dialog is a subsidiary of Axiata Group Berhad which owns 73.75% controlling stake of the company, while Bharti Airtel owns 10.36%, and the rest is held by the public.
Eurotel was the trade name of the first mobile phone network in Czechoslovakia. Given the possibility of a forthcoming of split of Czechoslovakia into two separate countries, Eurotel was formed as two separate legal entities: Eurotel Praha and Eurotel Bratislava.
Yettel Serbia is a Serbian mobile, fixed, internet and IPTV provider, owned by the Czech investment group PPF. It is headquartered in Belgrade. As of 2020, it is the second largest mobile telephony operator with market share of 36.98%.
A1 Telekom Austria (A1, A eins) is the leading fixed and mobile network operator in Austria, with 5.4 million mobile and 2.3 million fixed-line customers. A1 Telekom Austria traces its origins to Austria's first GSM mobile phone network which began testing in 1992 and commercial operations in 1994, under the name Mobilkom Austria, then part of the Austrian state-owned PTT agency Post- und Telegraphenverwaltung (PTV, ÖPT) until it was split off into its own company in 1996. After Mobilkom's merger with A1 Telekom Austria Group in July 2010 it operates under the new name of A1 Telekom Austria.
The prevalent means of connecting to the Internet in Germany is DSL, introduced by Deutsche Telekom in 1999. Other technologies such as Cable, FTTH and FTTB (fiber), Satellite, UMTS/HSDPA (mobile) and LTE are available as alternatives.
Vodafone GmbH is a telecommunications operator in Germany owned by Vodafone Group and headquartered in Düsseldorf. It provides mobile phone, LTE, 5G, cable internet, landlines, cable TV, and IPTV services. As of the third quarter of 2021, Vodafone GmbH has more than 31 million mobile customers in Germany, making it the third-largest provider of mobile phone services in Germany. The company's headquarters are in the suburb of Heerdt in Düsseldorf, with regional offices throughout Germany. Vodafone Germany's main competitors are 1&1 Mobilfunk, Telekom Deutschland and Telefónica Germany.
Makedonski Telekom AD is a telecommunications company in North Macedonia with headquarters in Skopje. It is part of the Magyar Telekom Group, which is a fully consolidated subsidiary of international Deutsche Telekom Group. It offers a range of telecommunications and entertainment services, such as telephone services, a range of internet access services including broadband internet, entertainment IPTV products and operates the national telephone network.
VoLGA Forum was formed in March 2009 by a group of companies in the wireless industry in an effort to define a set of specifications for enabling delivery of voice services over 3GPP Long Term Evolution (LTE) access networks based on the current 3GPP Generic Access Network (GAN) standard.
Telecommunications in Germany is highly developed. The German telecommunication market has been fully liberalized since January 1, 1998. Germany is served by an extensive system of automatic telephone exchanges connected by modern networks of fiber-optic cable, coaxial cable, microwave radio relay, and a domestic satellite system; cellular telephone service is widely available, expanding rapidly, and includes roaming service to foreign countries. As a result of intensive capital expenditures since reunification, the formerly antiquated system of the eastern part of the country has been rapidly modernized to the most advanced technology. Deutsche Telekom began rolling out FTTH networks in ten cities in 2011, following the launch of pilot projects in Hennigsdorf, Braunschweig and Dresden in 2010.
Mavenir Systems, Inc. is an American telecommunications software company, created in 2017 as a result of a three-way merger of existing companies and technologies, that develops and supplies cloud-native software to the communications service provider (CSP) market.
One Albania sh.a is a telecommunications company that operates in Albania. It was founded as Albanian Mobile Communications and was part of the COSMOTE Group since 2000. In 2015, the company joined the Deutsche Telekom group after which it was rebranded as Telekom Albania.
T-Mobile is the brand of telecommunications by Deutsche Telekom.
