Anyone knows how many and where these exist?

I believe there are about 7, or 12 from last count (as far as I can recall from a previous newspaper article)..

Some one else just told me there are 12. 2 with the US military portion of the net, 1 with NASA, 1 in Japan, and 2 in Europe somewhere. I wonder where the rest are!

As we speak, there are 13 of them exactly !!! That someone who told you was pretty near the mark :D

Learner

Any idea where those 13 are?