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 ...

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 ...

LONDON, ENGLAND - DECEMBER 06: The company logo is reflected in a mobile phone screen as shoppers walk past a branch of the o2 mobile network store on December 06, 2018 in London, England. The mobile ...

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 ...

Virgin Media O2 has rebranded its B2B telecoms arm as O2 Business in a bid to reduce complexity for UK businesses.

Mobile operator O2 has launched two roaming price plans, giving its UK customers cheaper overseas rates than any of its competitors and becoming the first network to allow frequent travellers to ...

Telefonica-owned U.K. mobile operator O2 announced today that it is going to be rolling out 5G this year with a focus on building partnerships with business. It will initially launch in the four ...

Early indications are that O2's satellite D2D service is a popular option, but mainly for those rare occasions when ...

O2 boss Ronan Dunne resigned from the Telefonica-run mobile carrier on Friday a matter of weeks after a planned merger with rival UK operator Three collapsed due to competition concerns. He will be ...

Mobile network operator O2 has blamed a problem with a third-party software installation for a nationwide network outage that has left millions of subscribers unable to access 4G data services on ...

No sooner does Google reveal that it's already making a billion dollars per year through mobile advertising than mobile operator O2 announces it has launched the UK's first location-based mobile ...

LONDON (MarketWatch) -- British mobile operator O2 PLC on Wednesday unveiled its first dividend payment, a payout higher than forecast. O2 (OOM) told shareholders it'll pay 2.25p a share in late ...