A few weeks ago I had the brand with which would operate Euskaltel in the rest of Spain would be Viva Mobile, and we already know many more details of it thanks to your website. It seems to be an MVNO aimed not only Spanish, but residents of other countries, offering personalized attention in different languages.
Rate this particular operator is of 16 cents to any mobile phone or landline national, and 8 cents to mobile Live Mobile and fixed international. For companies, the base price is 12 cents per minute. In all cases, it accompanies a settlement of 15 cents.
The logo of Viva Mobile reminds of Euskaltel in colors, and they themselves allude to this commercial relationship on his web page, which also has an area for customers.