Alright, I have just learned something that I have overlooked by being careless. I pulled up the NTIA January 2016 allocation chart, just to double check that 464.4750 was a 'shared' block. I had never closely looked at that block, because obviously with all of the civilian use, it was shared. The 2016 chart has 460 to 470, as Fed exclusive, huhhhh? I did not understand this. I looked closer and carefully. I finally realized the Use Listing bar on the bottom is not the only bar. The graph has use bars placed in the center of the frequency blocks also... (light bulb comes on). Now I see an entirely new graph. So I am pointing out my blunder in hopes it helps out someone else who is trying to decipher the NTIA allocation chart.. Live and Learn