Tuenti

Tuenti is a mobile operator brand owned by the Spanish company Tuenti Technologies, S.L.U. Telefónica bought 100% of the company back in 2011.
Before, Tuenti was also the most popular social network in Spain between 2009 and 2012 with up 15 million registered users.
Tuenti works in Spain as a full virtual mobile operator (MVNO) using Telefónica's mobile network. Tuenti was launched by Telefónica in Latin-America in 2014 as a whole new brand.