Millions of mobile phones will become "obsolete" when O2 makes a major change in just a few weeks. The provider is switching off its 3G network from April, affecting customers who use older phones.

Up to 15.6million O2 mobile phone customers will see their bills rise by 40 per cent more than they were originally told. The phone network has announced a new mid-contract policy change that will ...

Millions of O2 customers will enjoy faster, more powerful mobile speeds with a new rollout of 5G+ across more than 700 towns and cities, the provider has said. The service is available on O2 as ...