Ok.. The back does say trackable at Geocaching.com. I tried to substitute the O for zero, didn't work. I wish I could say I remember where I picked it up. I came across it today in my basket of pathtags. Thinking I picked it up, tried to log it, didn't work and set it aside. (Yes, BAD ME...) I tried to search the name Washington Montessori School.... Nothing. Tried to activate and retrieve my activation code... got the response that it is not in the system. It is in a plastic sleeve, but nothing else is with it.