About us

1&1 AG, headquartered in Montabaur, is a publicly listed telecommunications provider
and part of the United Internet Group.
With a strong focus on the German market, 1&1 actively drives the country's digital sovereignty.

Better and better every day

With over 30 years of experience, 1&1 stands for powerful mobile plans, award-winning customer service, and continuous product innovation – from all-net-flat rates and unlimited data plans to exclusive benefits through the 1&1 Vorteilswelt. The 1&1 Service Card offers premium services such as 24-hour device replacement and a dedicated priority hotline. 1&1 promotes digital inclusion through reliable, competitively priced products – consistently awarded top marks by independent trade publications. In addition, the discount brands of Drillisch Online GmbH serve price-sensitive customers with a strong focus on affordability.

The 1&1 O-RAN

1&1 operates the first fully virtualized 5G mobile network in Europe based on innovative Open RAN technology – independent, open by design, and built for the real-time applications of tomorrow. As Germany's fourth mobile network, the 1&1 O-RAN stands for greater competition and innovation in the national telecommunications landscape.

Nationwide Broadband Coverage

As one of Germany's leading providers of VDSL, vectoring, and next-generation fiber internet, 1&1 is driving Germany's gigabit transformation. The company leverages the nationwide fiber-optic transport network of 1&1 Versatel and, through partnerships with Deutsche Telekom and leading city carriers, is able to supply millions of households with future-proof fiber connections.

Index-of-wallet-dat Jun 2026

The story began with Old Man Dat, a recluse who lived on the outskirts of Ashwood. He was known for his peculiar habits and an obsession with organizing everything around him. His small cottage was a marvel, with every item meticulously cataloged and stored in its designated place. Among his possessions was a small, leather-bound book with yellowed pages, titled "Index-of-Wallet-Dat."

Thousands of Bitcoin users from 2011–2017 have lost their wallet.dat files due to hard drive crashes, misplaced USB sticks, or forgotten backup locations. If you once hosted a personal website or FTP server and might have accidentally uploaded a backup, searching for your own filename could help. Index-of-wallet-dat

The records section stores the actual wallet data, including: The story began with Old Man Dat, a

The wallet.dat index plays a vital role in ensuring the efficiency and security of the Bitcoin wallet. A well-maintained index: Among his possessions was a small, leather-bound book

The records section stores the actual wallet data, including:

The wallet.dat index plays a vital role in ensuring the efficiency and security of the Bitcoin wallet. A well-maintained index:

Social Commitment

As a successful telecommunications company, 1&1 sees itself as part of society and takes the responsibility that goes with this. Our corporate social responsibility activities revolve around our United Internet for UNICEF foundation.

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Sustainability

Doing business sustainably is a part of what 1&1 does every day. Our goal is to be a pioneer in this area as well.

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Non-financial Group report 2025

PDF 1,75 MB

ESG-Report 2024/2025

PDF Download (15,7 MB)

Protection of the environmental and climate

As a leading German telecommunications specialist, we see our role as building bridges to a positive, sustainable digital future.

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