Spain here too, Vodafone, and fitgirl-repacks.site also displays "ESTÁ USTED INTENTANDO ACCEDER A UN SITIO WEB ILEGAL" if I accept the (obviously) mismatched certificate they're using.
Surprisingly, thepiratebay.org is available for me though without issues. My previous ISPs here (Movistar, Orange, Jazztel) were all blocking thepiratebay.org
Seems to be pretty hit/miss what exact domains various ISPs block here. I would have imagined the police/courts serve like a centralized .txt file (simplified) the ISPs just fetch once a day or whatever, but seems to be way less organized than that, for better or worse.