That's a good question. Ultimately the FCC only has jurisdiction over American operators. However, net neutrality as a concept is also being debated in other countries. When someone like TBL is commenting on net neutrality I'm never quite sure if he is referring to net neutrality in the USA, or to the wider concept.

Precedentially net neutrality derives from the English common law's notion of common carrier. What you should expect this to mean is that the concept of net neutrality should be similar in all English common law countries. In practice I'm not always sure this is the case.

It is not just about the US:

http://en.wikipedia.org/wiki/Universal_Service_Directive

What happens in the US will eventually affect the rest of the world.