Press Release

Europe's first Open RAN is fully functional - Rakuten and Mavenir are technology partners in 1&1's cloud-native mobile network

December 8, 2023

Montabaur / Tokyo / Richardson, December 8, 2023 - With "1&1 O-RAN", the German mobile network provider 1&1 operates Europe's first fully virtualized 5G network based on the new Open RAN technology. After offering Fixed Wireless Access (FWA) since December 2022, mobile services (eMBB) are now also available. Thus, 1&1 O-RAN is now fully functional and available throughout Germany, for example with smartphones. Wherever the 1&1 network, which is currently being set up, does not yet have its own coverage, customers will automatically use national roaming on the Telefónica network, and from summer 2024 onwards on the Vodafone network.

The efficient network control of the cloud-native 1&1 O-RAN is carried out via the leading software and platform from 1&1 technology partner Rakuten, along with a core network from Mavenir. Rakuten Symphony, a Rakuten Group company providing global B2B services for the mobile telco industry and enabling next-generation, cloud-based, international mobile services is responsible for the end-to-end integration of the network. The cloud-native core network is provided by Mavenir as the industry’s leading cloud-native network software provider.  

Unlike conventional mobile networks, Open RAN technology consistently separates software and hardware. The antennas are no longer controlled on-site at radio masts but are software-based in a private cloud that 1&1 operates on commercial off-the-shelf servers in hundreds of decentralized edge data centers. Gigabit antennas are connected to these via fiber optics. 1&1 works flexibly with the most secure and best manufacturers via standardized interfaces. Products and services from over 80 companies are already being used in the 1&1 O-RAN, without any dependencies on dominant equipment suppliers from China.

"All network functions are located in our private cloud and are controlled by software. This comes mainly from Rakuten and Mavenir. As system integrator, Rakuten also ensures that all network components interact smoothly. In this way, 1&1 benefits from the extensive experience that Rakuten has gained in recent years in operating the world's first Open RAN in Japan. The full functionality of the 1&1 O-RAN is a major milestone in our company's history," says Ralph Dommermuth, CEO of 1&1 AG.

"As the first provider in Europe to operate a commercial Open Radio Access Network, 1&1 has created a digital beacon with its innovative mobile network. As end-to-end technology partner for 1&1’s network, Rakuten is delivering the efficient and highly automated control of the antennas in the 1&1 Open RAN. Using our specially developed orchestration software, we serve as system integrator to ensure that core network applications interact seamlessly with all other software and hardware components in the 1&1 O-RAN. We are very proud of the result of our joint work with our partners," says MickeyMikitani, Chairman and CEO, Rakuten Group.

"For the 1&1 O-RAN, Mavenir provides all components in the core network that are required for a state-of-the-art 5G mobile network - cloud-native and interoperable. Our software for the core network runs as container-based micro services on Rakuten Symphony’s platform and serves both fixed wireless access (FWA) and mobile services (eMBB). We congratulate 1&1 on Europe's most advanced mobile network and are proud to be part of this innovation from the beginning," says Pardeep Kohli, President and CEO Mavenir Systems Inc.

About Rakuten Group
Rakuten Group, Inc. (TSE: 4755) is a global leader in internet services that empower individuals, communities, businesses and society. Founded in Tokyo in 1997 as an online marketplace, Rakuten has expanded to offer services in e-commerce, fintech, digital content and communications to approximately 1.7 billion members around the world. The Rakuten Group has approximately 32,000 employees, and operations in 30 countries and regions. For more information visit

About Rakuten Symphony
Rakuten Symphony is reimagining telecom, changing supply chain norms and disrupting outmoded thinking that threatens the industry’s pursuit of rapid innovation and growth. Based on proven modern infrastructure practices, its open interface platforms make it possible to launch and operate advanced mobile services at a fraction of the time and cost of conventional approaches, with no compromise to network quality or security. Rakuten Symphony has headquarters in Japan and local presence in the United States, the United Kingdom, Europe, Singapore, India and the Middle East Africa region.

About 1&1
1&1 AG is a listed telecommunications provider based in Montabaur, Germany. The company is part of the United Internet AG Group. 1&1 offers a comprehensive tariff portfolio in its 5G mobile network as well as high-performance broadband connections based on the 1&1 Versatel fiber-optic transport network. It also offers attractive bundled products from mobile and fixed-line networks as well as value-added applications such as home networking, online storage, video-on-demand, smart home solutions and IPTV. While the 1&1 brand addresses value and premium segments, the company appeals to price-conscious target groups with its discount brands. 

About Mavenir
Mavenir is building the future of networks and pioneering advanced technology, focusing on the vision of a single, software-based automated network that runs on any cloud.  As the industry's only end-to-end, cloud-native network software provider, Mavenir is focused on transforming the way the world connects, accelerating software network transformation for 250+ Communications Service Providers and Enterprises in over 120 countries, which serve more than 50% of the world’s subscribers.

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