It is very much in use - it may not all be visible to the public internet however. If you said it was underutilized, you'd be correct. But before we go after

It is very much in use - it may not all be visible to the public internet however. If you said it was underutilized, you'd be correct. But before we go after the hams, what about the absolutely massive address space held by the US DOD and related agencies? its literally 20x the size of the /8 held reserved for the ham community.