Telefonica in Spain might be a reasonable guess. Ono the cable company isn't huge.
I think Telecom Italian is dominant in Italy and there is virtually no cable at all so that would be my guess.
* http://www.golem.de/news/level-3-sechs-grosse-internetprovid...
* http://www.welt.de/wirtschaft/article117963991/Bei-Europas-T...