I was searching on ways to create TBs and discovered recommendations that in order get the tracking number, you have to purchase a TB and use it's number on your other item. That's fair enough, I understand they're registered, but I feel like a master list of registered numbers obviously exists and we should be able to purchase a number (and thus have it removed from anyone else purchasing it) -- just as if I bought a TB, used it's number and hid the original away in my house, never to see the light of day. Rather than paying for, and waiting for, shipment on a physical tag/coin that I'll never use. I just need the number. Is it possible to buy numbers, either in singles or multiples, so they can be applied to items of our own choosing? If not, anyone else think it's a reasonable idea?