No, it´s blocked so far only by one of of the larger ISP´s. And that company didn´t do it out of free will. They have been given legal notice by a competitor to stop offering pornographic material without making dure minors don´t get access to it. And clicking "Enter" does not make sure minors will stay away.
Companies (the competitors) based in germany and some other euopean countries have to abide to very strict laws concerning access to porn, whereas companies legally based on some remote island are hard to get your hands on. So they attacked an ISP.