IP subnet calculator

2a01:c910::-2a01:c913:806a:9fff:ffff:ffff:ffff:ffff

2a01:c913:806a::-2a01:c913:806a:7fff:ffff:ffff:ffff:ffff
2a01:c913:806a::/49

2a01:c913:806a:8000::-2a01:c913:806a:9fff:ffff:ffff:ffff:ffff
2a01:c913:806a:8000::/51

2a01:c913:8000::-2a01:c913:803f:ffff:ffff:ffff:ffff:ffff
2a01:c913:8000::/42

2a01:c913:8040::-2a01:c913:805f:ffff:ffff:ffff:ffff:ffff
2a01:c913:8040::/43

2a01:c913:8060::-2a01:c913:8067:ffff:ffff:ffff:ffff:ffff
2a01:c913:8060::/45

2a01:c913:8068::-2a01:c913:8069:ffff:ffff:ffff:ffff:ffff
2a01:c913:8068::/47

2a01:c913::-2a01:c913:7fff:ffff:ffff:ffff:ffff:ffff
2a01:c913::/33

2a01:c910::-2a01:c911:ffff:ffff:ffff:ffff:ffff:ffff
2a01:c910::/31

2a01:c912::-2a01:c912:ffff:ffff:ffff:ffff:ffff:ffff
2a01:c912::/32