[js2]

HP has both 15/8 and 16/8, the latter originally from Compaq. You can see the other "legacy" allocations here:

http://www.iana.org/assignments/ipv4-address-space/ipv4-addr...

Nicely tabulated http://royal.pingdom.com/2008/02/13/where-did-all-the-ip-num...