Markus Haas, CEO of Telefónica Deutschland, pictured at the headquarters of mobile communications provider Telefónica (O2). The head of Munich-based mobile phone operator O2 sees his company on the ...

A data network outage that has left O2 customers unable to use mobile data is the result of a 'global software issue' according to the operator. O2 is the second largest mobile operator in the UK; the ...

Mobile operator O2's service outage is still causing problems for customers who joined its network or upgraded since the issues began on Friday. Calls, texts and data for existing customers should be ...

According to a recent report by the Next Web, UK mobile operator O2 may actually be sending your mobile phone number to every single website that you visit on your device. This was first discovered by ...

Back on Wednesday, we revealed that UK mobile phone operator O2 was sending its users’ mobile numbers to every website they visited from their phone. Whilst the network acted swiftly to get to the ...

LONDON (MarketWatch) -- Morgan Stanley upped U.K. wireless operator O2 to overweight with a price target of 144p, saying the company may lift its guidance for key performance indicators in late July.

LONDON – European cell phone operator Telefonica says it has reached an agreement to sell its British business, O2, to Hong Kong conglomerate Hutchison Whampoa for 10.25 billion pounds ($15.24 billion ...

UK operator O2 has upgraded its mobile network in and around Wembley Stadium to bring enhanced 5G connectivity to fans, ahead of the FA Cup Final and what the operator is billing as a “blockbuster” ...