So I jumped in-game and of course go to set my ship prefix as it's an important element to my character... and we have a range of 99999 to 999999. Is that a bug? Why can't there be numbers before or after? Of course I just ended up adding a 9 to the prefix I wanted, but I wanted mine to start with a 3. Is this going to change?

By the way, that's not many prefixes is that's what we're going to have on retail launch. That's not even enough unique numbers for every player (that the game currently has).

I'm going to assume you meant something different, because my ship is 93004, and 99999-99999 means you could never get a ship with any number other then 99999.

That said, I somewhat agree, but can understand that after a couple hundred years of starfleet, the registry numbers could potentially be up that high.

I tried it last night, the range was 91000-999999, making a total pool of 909000 base registry numbers. Each of those can have an alpha designator suffix as well A-Z. (e.g., 91000-A, 91000-B, 91000-C, etc.)

Are these numbers supposed to be unique or are they like our player names? Perhaps only our global name (@name) is unique?

Only the Accountname (@name) is Unique.

You missed a "9" in your Posting, he wrote 99.999 to 999.999. It start's with 91.001 and ends up with 999.999. Think that's unique enough to me, as everything is instanced.