Never checked. But it does change once in a while. The router has a dyndns function which updates a DNS entry, but only for the router itself. But this is sufficient for the NAT port forwarding.

▲

icedchai 30 minutes ago | parent [-]

Ok, so most of the time you are trackable by your public IPv4. The situation is not much better.

▲

menotyou 14 minutes ago | parent [-]

Let's say when your ipv6 prefix changes it is almost the same situation. Only that ipv4 bundles all traffic of all devices on one ip which obfuscates a bit.

But having the ipv6 prefix change you get a pile of problems (DNS, firewall), you don't have with ipv4.

	▲	icedchai 10 minutes ago \| parent [-]
		The IPv6 prefix changes are disruptive, I agree. My prefix has been stable for a couple years, but on another ISP it would change every few months and was certainly annoying.