I’ve gotten pretty lucky with my past and current ISPs (Spectrum and AT&T fiber in the USA). The only times I’ve had my public IPv4 address or IPv6 prefix chang

I’ve gotten pretty lucky with my past and current ISPs (Spectrum and AT&T fiber in the USA). The only times I’ve had my public IPv4 address or IPv6 prefix change was when the router’s MAC address or DUID (dhcpv6) changed. For my use case, I kind of like this system since everything is (mostly) static and I can change it if I need to.