Don't know if this helps, but this is the IPV6 info from my fiber router.
IPv6
Status Available Global IPv6 Address 2602:306:83c1:a710::1/64 Link-local IPv6 Address fe80::9662:69ff:fee2:7d20 Router Advertisement Prefix 2602:306:83c1:a710::/64 IPV6 Delegated LAN Prefix 2602:306:83c1:a710:: 2602:306:83c1:a718::
/\llen
... Quoth the Raven, "Nevermore." --- Platinum Xpress/Win/WINServer v3.0pr5 * Origin: LiveWire BBS - livewirebbs.com - Louisville, KY (1:2320/100)