CityFibre Top 1 Million Customers on UK Full Fibre Broadband Network | ISPreview UK

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The UK’s biggest alternative 10Gbps capable Fibre-to-the-Premises (FTTP) broadband operator, CityFibre, has this morning revealed that over one million households and businesses are now making the most of their national network (up from 848,000 at the end of 2025 – here).

The company’s full fibre (FTTP – XGS-PON) network currently covers over 4.7 million UK premises (4.5m Ready for Service) and they still aspire to reach 8 million in the future. In addition, the operator also holds nine Project Gigabit contracts, although these were significantly scaled-back last week (here).

NOTE: CityFibre is owned by Antin Infrastructure Partners, Goldman Sachs, Mubadala Investment Company, Interogo Holding etc. The FTTP network is supported by UK ISPs such as Vodafone, TalkTalk, Zen Internet, Sky Broadband and many more (local ISP availability does vary a bit between locations).

Alongside its full fibre broadband services, CityFibre is also a provider of Critical National Infrastructure (CNI) to mobile operators, enterprises and local authorities, which now connects almost 16,000 sites including schools, hospitals and GP surgeries across the UK.

Simon Holden, CEO of CityFibre, said:

“We have built a nationwide, full fibre network to be proud of and, today, CityFibre is trusted by millions to power their digital lives. The UK shifted up a gear with the arrival of the altnets and CityFibre continues to challenge the incumbents and deliver the benefits of competition to households, businesses and partners right across the country.”

Liz Lloyd, UK Telecoms Minister, said:

“This milestone shows the difference government’s pro-investment environment is making, helping bring fast, reliable broadband to homes and businesses in some of the UK’s hardest-to-reach communities.

Our investment in broadband infrastructure, including through Project Gigabit, is helping companies like CityFibre reach more communities, faster. We’ll continue to remove barriers to rollout and back the investment needed to deliver the digital infrastructure people rely on every day — whether that’s working, learning, running a business or staying connected with friends and family.”

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