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 ...

LONDON (AP) _ Telefonica SA announced Monday it has agreed to buy mobile phone company O2 PLC in a 17.7 billion-pound (euro26 billion; US$31.4 billion) deal that will help expand its presence in the U ...

O2 has significantly cut its data-roaming prices within Europe. On Monday the Telefónica group, which owns O2, announced that its customers in the UK, Ireland, Spain, Germany and the Czech Republic ...

Katie is a UK-based news reporter and features writer. Officially, she is CNET's European correspondent, covering tech policy and Big Tech in the EU and UK. Unofficially, she serves as CNET's Taylor ...