New fibre partnership Telefónica Deutschland gains access to around three million additional households by partnering with Deutsche Glasfaser
Telefónica Deutschland will be able to market the fixed-line products of its core brand, O2, via Deutsche Glasfaser's FTTH network in the future (Credits: iStock / Crovik Media)
Telefónica Deutschland is expanding its fixed-line business with another major fibre-optic partner. A long-term agreement with Deutsche Glasfaser gives the core brand O2 and its fixed-line products access to around three million additional FTTH households. This enhances the company’s fiber footprint by around 20 per cent to a total of around 19 million households.
Going forward, Telefónica Deutschland will be able to market the fixed-line products of its core brand, O2, via Deutsche Glasfaser’s FTTH network. This is set to begin in the first half of 2027. The partnership with one of Germany’s largest fiber providers will expand availability, particularly in rural and suburban areas, where O2 so far often has been able to offer only DSL or cable products, or no fixed-line products at all.
“With Deutsche Glasfaser, we are opening millions of additional households to our fibre services and specifically strengthening our fixed-line business as one of our growth areas. At the same time, we are creating more choice for customers and generating additional demand for existing infrastructure. It is precisely this interplay of reach, competition and improved network utilisation that is driving the fiber market forward in Germany,” says Jörg Kablitz, Chief Partner & Wholesale Officer and member of the Executive Board of Telefónica Deutschland.
Jörg Kablitz ()
More competition on the fiber network
With O2, Deutsche Glasfaser gains a strong brand with one of the largest sales organisations in the German telecoms market with a large base of mobile and fixed-line customers. The additional demand can increase utilisation and thus the profitability of existing and newly developed fiber infrastructure.
“The partnership with Telefónica sends a strong signal in favour of open access and marks an important milestone for genuine competition in the telecoms market. It speaks for itself that three out of four national providers now rely on our network. It impressively confirms the quality and appeal of our infrastructure. We are delighted with this success and look forward to further expanding our partnership together,” says Ruben Queimano, Chief Commercial Officer at the Deutsche Glasfaser Group.
O2 can market its tariffs at the same terms as Deutsche Glasfaser. O2 customers will be connected just as swiftly and will receive the same services regarding the operation and fault-resolution of their fiber lines. Even in new roll-out areas, O2 can already offer products in parallel with Deutsche Glasfaser and other providers during the pre-marketing and roll-out phase.
More choice for fibre-optic customers
For consumers, the partnership means more choice on the same infrastructure. In future, alongside Deutsche Glasfaser and other network users, they will also be able to choose O2 as a provider. In this way, the open-access model combines investment in new fiber networks with competition amongst providers.
Via Deutsche Glasfaser’s infrastructure, O2 customers can subscribe to fixed-line tariffs with speeds of up to 1,000 Mbit/s, including a flat-rate calling plan to German fixed-line and mobile networks. O2 mobile customers can add corresponding fixed-line products, for example as part of the O2 Plus bundles.
| About Telefónica Deutschland As one of the world’s leading telecommunications companies, Telefónica wants to be the best gateway to digital technologies for citizens, businesses and institutions. With more than 300 million connections and an annual turnover of 35 billion euros, the Telefónica Group focuses its activities on Spain, Brazil, Germany and the United Kingdom. Telefónica Deutschland accounts for around a quarter of the Telefónica Group’s turnover. As a full-service telecommunications provider, it is the leading mobile network operator for citizens and a key player in the market for innovative partner offerings, as well as a rapidly growing provider of solutions for enterprises. The company’s core brand is O2, alongside secondary and partner brands such as Blau and Ay Yildiz. Its range of services includes traditional telephone and internet connections, as well as digital services in the areas of the Internet of Things, security, entertainment and data analysis. In the mobile communications sector, Telefónica Deutschland serves around 35 million connections (31 March 2026). The provider’s multi-award-winning mobile network covers more than 99 per cent of the population. In 2025, Telefónica Deutschland generated revenue of 8.2 billion euros. About Deutsche Glasfaser Deutsche Glasfaser Group is a pioneer in fiber optic expansion in rural and suburban areas in Germany. As digital provider of the regions, Deutsche Glasfaser plans, builds and operates open-access fibre networks for private households, businesses and public institutions. The company aims to roll out fibre networks across the nation, thereby contributing significantly to Germany’s digital transformation. With innovative planning and construction methods, Deutsche Glasfaser is a specialist for fast and cost-efficient FTTH deployment. Backed by experienced digital infrastructure investors EQT and OMERS, Deutsche Glasfaser is one of the financially strongest operators in the German market, with a planned total private-sector investment volume of >€11bn. www.deutsche-glasfaser.de |
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