MIT recently sold part of their IPv4 address space to AWS (the block 18.145.0.0/16): http://www.networkworld.com/article/3191503/internet/mit-selling-8-million

MIT recently sold part of their IPv4 address space to AWS (the block 18.145.0.0/16): http://www.networkworld.com/article/3191503/internet/mit-selling-8-million-coveted-ipv4-addresses-amazon-a-buyer.html http://www.networkworld.com/article/3191503/internet/mit-sel... https://whois.arin.net/rest/net/NET-18-145-0-0-1.html https://whois.arin.net/rest/net/NET-18-145-0-0-1.html According to the IPv4 Market Group, prices per address have trended around $8 - $12 (prices vary by block size): http://ipv4marketgroup.com/ipv4-pricing-in-a-post-arin-runout-world/ http://ipv4marketgroup.com/ipv4-pricing-in-a-post-arin-runou...