I think it's about time that the following net blocks get forcibly reallocated.
NetRange: 188.8.131.52 - 184.108.40.206
OrgName: General Electric Company
NetRange: 220.127.116.11 - 18.104.22.168
OrgName: IBM Corporation
NetRange: 22.214.171.124 - 126.96.36.199
OrgName: Xerox Corporation
NetRange: 188.8.131.52 - 184.108.40.206
NetRange: 220.127.116.11 - 18.104.22.168
OrgName: Hewlett-Packard Company
NetRange: 22.214.171.124 - 126.96.36.199
OrgName: Apple Inc.
NetRange: 188.8.131.52 - 184.108.40.206
OrgName: Ford Motor Company
That's over 16 million unique IP addresses per company, Apple is the only one that appears to even use their assigned range for their publicly accessible websites.
It was wasteful to give private companies in the US entire /8 ranges, and in the case of HP, 2 full /8 ranges.
This is just a small example, the US military also has large portions of the IPv4 space for their own mostly internal uses.