That is an interesting argument raised by Michael Froomkin about the Wikileaks case:
This isn’t a classic prior restraint on speech since it reaches the registrar not the speaker — but it’s close enough to stopping the delivery trucks on a newspaper that I think this aspect of the decision is a cause for some First Amendment concern. The IP numbers for the site still work, though. Try 88.80.13.160.
Of course this ruling also makes us look more like China. Hopefully an upper court judge will overturn this poor decision.