[minipci1321]

I seem to recall that, during the initial deployment in the 90-ies, I read about China requesting that some parts of its territory be excluded from coverage. But I cannot find any links to that, and the coverage map doesn't seem to have any holes now.

[Sec]

I know that you have to register your phone specially to use it in russia, but I have no idea if that actually affects reachability.

I know Iridium is illegal in Kuba, but works just fine there.

I don't recall any restriction in china, currently.