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 ...

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 ...

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 ...

Under an agreement announced on Thursday, Vodafone and O2 parent Telefonica UK will create a joint venture that will take over the running of the pair's basic network infrastructure, including their ...

O2 is telling customers to stay alert after the discovery of a worrying new scam that's targeting UK users. The fraudulent message, which is arriving on devices, claims that customers’ SIM cards are ...

O2 has recovered from a major data outage that left hundreds of thousands of customers without access to voice, data and text services for more than 24 hours, but customers are unlikely to get any ...

O2, one of the leading providers of wireless service in the United Kingdom, has apologized to customers for recent network issues including the inability to make or receive calls, or transmit data.

Virgin Media O2 has accused BT of “choking off” competition over plans to offer discounts to rival broadband providers.