Board Thread:Policies/@comment-1618941-20130519231400/@comment-4651179-20130520004015

All the numeric designations for universes we use in this wikia are officially given by Marvel and the guys from the Official Handbook to the Marvel Universe, a list which is updated here.

We can't go around saying this reality is Earth-2805 and such things, that's why we (Spencerz, actually) came up with our TRN systems, in order to be able to work with realities which haven't got an official designation from Marvel.