| Range From | Range To | Organisation |
|---|---|---|
| 2001:1890:2021:800:: | 2001:1890:2021:8ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:900:: | 2001:1890:2021:9ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:a00:: | 2001:1890:2021:aff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:b00:: | 2001:1890:2021:bff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:c00:: | 2001:1890:2021:cff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:d00:: | 2001:1890:2021:dff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:e00:: | 2001:1890:2021:eff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:f00:: | 2001:1890:2021:fff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:1000:: | 2001:1890:2021:10ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:1100:: | 2001:1890:2021:11ff:ffff:ffff:ffff:ffff |