Mobile networks

Welcome to our network. It's different

We're investing and modernising for you

We're proud of our network. Of its heritage and its future.

It's secure. We're the only network to have CAS(T) certification for voice and data services.

We're the power behind London buses, connecting 8,000 buses every 30 seconds. We help keep the UK safe by providing voice, data and comms for over half the UK’s police forces. More than 20 million homes will connect to our network through the government’s smart metering programme.

And we're continuing to invest £2m every single day to bring you an even better network. Our modernisation programme aims to provide 98% 4G coverage across the UK by the end of 2017.

What makes us different?

  • Our network heritage and a history of firsts. We have a proven track record of building and operating leading mobile networks. We were the UK’s first self-optimising network, adapting to improve customer experiences in real time. The first UK operator to install six-sector capacity-boosting technology on our network.
  • We’re trusted to keep UK businesses running. From Network Rail to the AA, we’re keeping 24 million customers and 450,000 businesses moving, and were judged the UK’s Best Business Network at the Mobile Industry Awards 2017.
  • A network designed, built and run with our customers in mind. We listen, understand and improve. Our latest independent tests show that O2 is #1 for voice in 18 of the top 20 UK cities, and #1 for data in 14 of the top 20 cities.
  • We’re future-looking. We’re investing over £600m per year in innovations like Massive MIMO and 5G – so we can meet your ever-changing need by delivering even faster mobile experiences. And as part of Telefónica, we belong to business that’s committed to building secure, reliable communications networks worldwide. 

Watch our video to find out more about our network story.

O2 Building a Better Network 2015