<Tr> <Th> Owner </Th> <Td> Telefónica </Td> </Tr> <Tr> <Th> Website </Th> <Td> giffgaff.com </Td> </Tr> <P> Giffgaff (stylized "giffgaff") is a mobile telephone network running as a Mobile Virtual Network Operator (MVNO) using the United Kingdom O2 network . Owned by O2's owners Telefónica, Giffgaff was launched on 25 November 2009 . </P> <P> Within 2010, its first year of operation, Giffgaff won two industry awards, the Forrester Groundswell Award in November, also the Most Innovative Community Award at the Social CRM Customer Excellence Awards . In November, Giffgaff was nominated for the Marketing Society's Brand of the Year, but lost to the department store John Lewis . </P>

Who is the giffgaff mobile network run by