[simoncion]

> id assume those unchanging ipv4 addresses are not shared and natted with other customs...

Over the last several decades of me having residential Internet service from a variety of ISPs here in the US, I've never had an IPv4 address that was not globally-accessible. Relatedly, I've never had a guaranteed-static IPv4 address, but I COULD get one if I paid the ISP additional money.

I understand that in other regions of the world NOT being behind CGN is not guaranteed.

> That's not the same for not changing an ipv6 address

Hopefully you now understand the context in which I made my remarks. In the world that I (and many other folks) live in, I get one globally-accessible, but definitely-not-static IPv4 address.