MIT gave up half of 18/8 earlier this year, mostly to Amazon - https://www.networkworld.com/article/3191503/internet/mit-selling-8-million-coveted-ipv4-addresse

MIT gave up half of 18/8 earlier this year, mostly to Amazon - https://www.networkworld.com/article/3191503/internet/mit-selling-8-million-coveted-ipv4-addresses-amazon-a-buyer.html https://www.networkworld.com/article/3191503/internet/mit-se... They've internally started rolling out IPv4 NAT and IPv6