O2's network collapsed overnight, but those signed up to other mobile providers shouldn't feel too smug: the outage caused carnage well beyond its direct customers. Waiting for a bus in London? The ...

Add Yahoo as a preferred source to see more of our stories on Google. Markus Haas, CEO of Telefónica Deutschland, pictured at the headquarters of mobile communications provider Telefónica (O2). The ...

O2 says its phone network is back up and running, and thoughts are turning to compensation. Richard Trenholm Former Movie and TV Senior Editor Richard Trenholm was CNET's film and TV editor, covering ...

O2 is launching a new service that will offer a free speed boost to thousands of its customers.

O2 has just issued an urgent warning to its customers after the discovery of a fake text message that suggests a SIM is about to expire.

O2 has announced that it is switching off its ageing 2G network, and that's good news for anyone with a 4G or 5G compatible ...