| Range From | Range To | Organisation |
|---|---|---|
| 2001:1890:2031:b000:: | 2001:1890:2031:b0ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:b100:: | 2001:1890:2031:b1ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:b200:: | 2001:1890:2031:bfff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:c000:: | 2001:1890:2031:c0ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:c100:: | 2001:1890:2031:c1ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:c200:: | 2001:1890:2031:cfff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:d000:: | 2001:1890:2031:d0ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:d100:: | 2001:1890:2031:d1ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:d200:: | 2001:1890:2031:dfff:ffff:ffff:ffff:ffff | |
| 2001:1890:2031:e000:: | 2001:1890:2031:e0ff:ffff:ffff:ffff:ffff |