The list of /8 block owners makes interesting reading: https://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks https://en.wikipedia.org/wiki/List_

The list of /8 block owners makes interesting reading: https://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks https://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_addre... The US Army in various guises controls vast swathes of address space, but there are also lots of corporations with a 256th of IPv4 all to themselves: Halliburton, GE, Prudential, Ford, etc. MIT also appears to be the last university still hanging onto their own block.