IP subnet calculator 2a09:bac5:58c0::-2a09:bac5:58c7:ffff:ffff:ffff:ffff:ffff
2a09:bac5:58c0::-2a09:bac5:58c7:ffff:ffff:ffff:ffff:ffff
2a09:bac5:58c0::/45
