IP subnet calculator

2A01:C910:8005:0:0:0:0:0-2A01:C910:8006:FFFF:FFFF:FFFF:FFFF:FFFF

2a01:c910:8005::-2a01:c910:8005:ffff:ffff:ffff:ffff:ffff
2a01:c910:8005::/48

2a01:c910:8006::-2a01:c910:8006:ffff:ffff:ffff:ffff:ffff
2a01:c910:8006::/48