It's very common. German ISPs collectively went with DS-Lite, so most of that 77% with v6 have CGNATed v4.
Somehow it's really hard to find numbers, but AFAIK at least Telekom and 1&1 don't use CGNAT for home connections, which already rules out that 77% have it.
alt Hacker News
Somehow it's really hard to find numbers, but AFAIK at least Telekom and 1&1 don't use CGNAT for home connections, which already rules out that 77% have it.