Migrating to IPv6 is hard because there is hardly any real will to do so. Most people don't need a unique IP address and don't mind being behind some ISP-level

Migrating to IPv6 is hard because there is hardly any real will to do so. Most people don't need a unique IP address and don't mind being behind some ISP-level NAT. So it will happen as bigger companies are forced into it. The phone network on the other hand could work with a very simple reputation list. If you carrier fails to act against malicious actor they lose access to everyone else and that's it. Once they have a financial interest that forces them to look into it the problem would solve itself. Just today I've had 2 calls from "the government of Canada" telling me that there was a warrant out to my name.