Company Announcements

1&1 mobile network reaches 25 percent of German households

Montabaur, 17 December 2025 – Just two years after launching mobile services on Germany's fourth mobile network, 1&1 AG (ISIN DE 0005545503) has achieved coverage of 25 per cent of German households. This means that 1&1 has met the first coverage target set for the company by the Federal Network Agency as part of the 5G frequency auction ahead of the December 31, 2025, deadline. On November 11, 2025, 1&1 had already fulfilled the Federal Network Agency's requirement concerning “competitive independence” ahead of schedule by completing the migration of all existing customers previously served under wholesale contracts to the 1&1 mobile network.

Last year, the Administrative Court of Cologne declared the award conditions and auction rules established by the Federal Network Agency for the 5G frequency auction were unlawful and obliged the Federal Network Agency to issue a new decision. These rulings have been legally binding since November 2025. Regardless of this, 1&1 remains committed to its rollout plans.

“On December 8, 2023, we launched mobile services in the 1&1 O-RAN. In the meantime, our 12.5 million mobile customers are using our network – Europe's first fully virtualized 5G network based on the innovative Open RAN technology,” said Ralph Dommermuth, CEO of 1&1 AG.

The network quality of the 1&1 mobile network received multiple awards in 2025. Most recently in the benchmark test conducted by the renowned trade journal connect in collaboration with the globally active network tester umlaut. Here, the network quality of 1&1 was immediately awarded the rating ‘very good’*.

“Our motivation is to bring real competition, technological innovation, and digital independence to German mobile communications. We look forward to providing more and more people with our modern 5G network in the future,” Dommermuth continues.

All voice and data connections are processed in the powerful 1&1 core network. Here, 1&1 delivers key quality features such as short call setup times, high call quality, and fast website loading. Wherever 1&1 does not yet have its own antenna infrastructure during its ongoing network rollout, customers are automatically connected to the 1&1 network via the antennas of its national roaming partner Vodafone.

^*“Very good” rating awarded by connect (www.connect.de/3211255) in an individual assessment based on its mobile network test benchmark metric for the network quality of 1&1 O-RAN combined with national roaming from Vodafone.

 

Montabaur, 17 December 2025

1&1 AG

The Management Board

 

About 1&1 AG

1&1 AG, headquartered in Montabaur, is a listed telecommunications provider and part of the United Internet Group.

With a focus on the German market, 1&1 specifically strengthens the country's digital sovereignty. 1&1 is the first network operator in Europe to operate a fully virtualised 5G mobile network based on the new Open RAN technology - independent, technology-agnostic and ready for real-time-applications of the future. As the fourth network, 1&1 O-RAN stands for more competition and innovation in the German mobile communications landscape.

In addition to a comprehensive mobile communications portfolio, broadband connections are offered which are based on 1&1 Versatel's Germany-wide fibre-optic transport network and on networks of regional city carriers as well as of Deutsche Telekom.

While the 1&1 brand addresses value and premium segments, the Group's discount brands appeal to price-conscious target groups