Yeah. Okay. And how many companies are sitting on vast blocks that are only partially tapped?
There's some interesting economics coming up. Companies will bid up the price of IPv4 blocks, but that will also make it look like a better idea to move to IPv6. Google's stats show IPv6 users have gone up from roughly 3.5% to 7% in twelve months. If you expand the graph you'll see IPv6 is higher at weekends, when people are at home, and lower on weekdays.
So the price of IPv4 will go up, but this will push companies toward IPv6 migration, and when that happens the worth of IPv4 blocks will drop significantly.