[mimi89999]

Was it unreadable? Sometime ago everybody believed that after the IPv4 exhaustion everybody will quickly switch to IPv6. It was quite reasonable to sell them while they were still worth something if they believed that they will be worthless is several years.

Sadly, there was no big switch to IPv6 and double NAT is the thing now.

[p1mrx]

~0% to ~30% in 10 years isn't perfect, but it's a pretty big switch: https://www.google.com/intl/en/ipv6/statistics.html