About us

Telefónica UK Limited is a leading digital communications company owned by Telefónica S.A. O2 is the commercial brand of Telefónica UK Limited and is the mobile network operator with the highest customer satisfaction in the UK according to Ofcom. With over 25 million customers, O2 runs 2G, 3G and 4G networks across the UK, as well as operating its nationwide O2 Wifi service. O2 has over 450 retail stores and sponsors The O2, O2 Academy venues and England Rugby. Read more about O2 at o2.co.uk/news.

Telefónica UK Limited is registered in England and Wales. Registration number: 1743099.

Its registered office is at: 260 Bath Road, Slough, Berkshire, SL1 4DX, United Kingdom.

About Telefónica

Telefónica has a significant presence in 21 countries with more than 327 million customers and 125 thousand employees. More information here.