BUMP! I am wondering this, too. Is it level based or what

If you're playing the story you can access this once you piss off LIberty Navy (following the story, don't just outright do that) and have to evacuate to the badlands. However with the multiplayer defaults I still have not been able to access this gate, or the jump hole from Magellan to New London which is kind of weird, considering I can just about use all the other 40+ jumps I've found through out the omega/omicron/tau systems.

Chris

I don't quite understand why some of those gates/holes are blocked. Would it be harmful to allow players to visit Alaska and Tohoku(sp?)? It's not like they'd have made any balancing for MP.
There are also jumpholes to 'pass' systems on the way, like the Hamburg - Frankfurt hole, for example. So is it a slipped bug that there are 3 inaccessible jumps (NY-Magellan gate, Magellan-London & Leeds-Dublin holes)?

Alaska is blocked for a very good reason.. All those mines keep people from breaking in/out of the Prison planet in Alaska system And no, there are no jump holes to that system, just the one gate.

Jump Gate New York -> Alaska blocked not only by mines. There is a passage through mine field, but "Dock is not allowed". Don't know why. But if there is prison, then there should be jump hole to Toledo and to Nomads side I think.

There is a list of blocked jump holes and gates in ini-file (don't remember what exactly) and list of "easter eggs" jump holes in the same file. may be by changing this list it is possible to unlock all jump holes and gates