Outside of Greece, previous operations included GLOBUL in Bulgaria (now Yettel) and Telekom in Albania (now One Albania).
Until October 2025, Cosmote also operated in Romania as Telekom Romania until the sale to Vodafone Romania. As part of the sale, Vodafone acquired the postpaid customer base and Digi the prepaid customer base.
Both companies (Vodafone & Digi) also gained additional spectrum and towers.[5][6][7]
Introduction of the Telekom brand
In 2015, despite adopting the Telekom brand for its operations in both Albania and Romania, OTE Group instead announced plans to adopt Cosmote as their uniform commercial brand in Greece covering fixed, broadband and mobile telephony. The brand was also refreshed and a new logo and strap line introduced.
Whilst Cosmote had always been the brand used for mobile telephony, the company had previously sold fixed (landline) and broadband services under the OTE brand.[8]
In 2023, activity began to raise awareness of the Telekom brand in Greece. In September, after Telekom’s T logo was added to the OTE Group building in Athens, the chief of Deutsche Telekom hinted that the logo may be adopted [9]
The website, stationary and printed advertisements and billboards were then updated to feature the Telekom logo in addition to the Cosmote branding with the statement "Member of the Telekom Group".
Beginning in 2024, all commercials ended with the slogan "Cosmote, member of the Telekom Group". In addition, a new splash screen of the Telekom branding was added to Cosmote’s television advertisements.
Cosmote also branded various programmes and competitions as "Powered by Telekom" such as Women in Gaming and World Pass to further enhance customer awareness.
In April 2025, the new Cosmote Telekom brand was launched along with the tag line ‘Συνδέουμε τον κόσμο σου’ (Connecting your world)[10]
Since the introduction of the new brand, Cosmote Telekom have introduced MagentaONE (previously Cosmote One), Magenta AI and Magenta Moments. The T Phone 3 and T Tablet 2 launched in Greece.
In addition, the Basketball arena at the OAKA (Olympic Athletic Center Athens) has been renamed Telekom Center Athens under a five year deal [11]
COSMOTE launched commercial operations in Greece in April 1998 and reached 1 million subscribers a year later. In 2000, the company was listed in the Athens Exchange. In 2001, COSMOTE reached a customer base of 2.5 million becoming the largest mobile network operator in Greece.[12]
In 2006, COSMOTE acquired 99% of Germanos SA from its owner Panos Germanos,[13] a multinational chain of retail electronic goods vendors. During the same year COSMOTE was listed among the top performers in the technology industry worldwide according to BusinessWeek's Information Technology 100 rankings, being the only Greek company in the list.
Subsidiaries
Telekom Romania: In July 2005, COSMOTE acquired 70% of the Romanian operator COSMOROM which was the mobile arm of Romanian national incumbent operator Romtelecom. Later that year, COSMOROM was rebranded to COSMOTE Romania. In November 2009, COSMOTE acquired Telemobil SA (Zapp), the first CDMA 450MHz mobile phone operator in Romania, thereby gaining access to 3G license and infrastructure in the country.[14]
Under its Corporate Responsibility (CR) programme, COSMOTE supports actions related to the environment, society, the marketplace, the workplace and public awareness. Actions undertaken in this context include inter alia a joint sponsorship, together with the Hellenic Telecommunications Organization (OTE), of the Athens 2004 Olympic Games. COSMOTE has also initiated a Scholarship programme for university studies, awarding scholarships to high school graduates who have been admitted as first year students in higher educational institutions in Greece.[15][16]
In October 2011, COSMOTE announced that will support, together with OTE, the digitisation of the libraries of the Halki seminary in Constantinople.[17]
In 2012, OTE and COSMOTE announced the sponsorship of the exhibition "The Antikythera Shipwreck: The ship, the Treasures, the Mechanism", of the National Archaeological Museum.[18]
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
