| Range From | Range To | Organisation |
|---|---|---|
| 2001:1890:2021:3a00:: | 2001:1890:2021:3aff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:3b00:: | 2001:1890:2021:3bff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:3c00:: | 2001:1890:2021:3cff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:3d00:: | 2001:1890:2021:3dff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:3e00:: | 2001:1890:2021:3eff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:3f00:: | 2001:1890:2021:3fff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:4000:: | 2001:1890:2021:40ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:4100:: | 2001:1890:2021:41ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:4200:: | 2001:1890:2021:42ff:ffff:ffff:ffff:ffff | |
| 2001:1890:2021:4300:: | 2001:1890:2021:43ff:ffff:ffff:ffff:ffff |