Telefonica Spain's O2 brand has launched a festive offer for its eSIMFlag service aimed at customers travelling abroad in the ...

News that Virgin Media O2 would not be following rival mobile suppliers in reintroducing mobile roaming charges for those travelling in the European Union (EU) has been regarded by some as ...

Can you imagine switching to another cellular provider for your smartphone without having to go to a shop or wait for your physical SIM card to be shipped? Or traveling abroad knowing your phone will ...

Users with a contract with the mobile network provider O2, a Telefonica subsidiary, are complaining about problems activating their contract with the Apple Watch. Mobile-capable devices such as the ...