Some companies have been allocating a bunch of pointless IPv4 addresses and I think that's why AWS is doing this. A friend of mine have reduced the number of IP

Some companies have been allocating a bunch of pointless IPv4 addresses and I think that's why AWS is doing this. A friend of mine have reduced the number of IPv4 addresses his employer uses by 80% (100+ IPs) in less than a week. That's a huge saving, but those IPs should never have been allocated to begin with.