Telefónica O2 UK Limited is a leading communications company for consumers and businesses in the UK, with 19.1 million mobile customers and over 260,000 fixed broadband customers as at 30 September 2008. Telefónica O2 UK Limited is part of Telefónica Europe plc which is a business division of Telefónica S.A. and which owns O2 in the UK, Ireland, Slovakia, Germany and the Czech Republic, and has 43.8 million customers.