<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> 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>
who is the giffgaff mobile network run by
who is the giffgaff mobile network run by
O2 's owners Telefónica
O2 's owners Telefónica