I got that list from Hurricane Electric[1] site. Those are the prefixes for Gatech. I am sure they do get a lot of research work. The same goes for all the other NSA centers of excellence.[2] Academia is the third tab on NSA's home page.[3]

[1] http://bgp.he.net/AS2637#_prefixes

[2] http://www.nsa.gov/ia/academic_outreach/nat_cae/institutions...

[3] http://www.nsa.gov/academia/index.shtml