| 2001:240:1e00:5a00:: | 2001:240:1e00:5aff:ffff:ffff:ffff:ffff | Chiba City |
| 2001:240:1e00:5b00:: | 2001:240:1e00:ffff:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:1e01:: | 2001:240:1ffe:ffff:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:1fff:: | 2001:240:1fff:ffff:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:2000:: | 2001:240:21ff:ffff:ffff:ffff:ffff:ffff | IIJ Internet |
| 2001:240:2200:: | 2001:240:22ff:ffff:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:2300:: | 2001:240:26ff:ffff:ffff:ffff:ffff:ffff | IIJ Internet |
| 2001:240:2700:: | 2001:240:27ff:ffff:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:2800:: | 2001:240:2aff:ffff:ffff:ffff:ffff:ffff | IIJ Internet |
| 2001:240:2b00:: | 2001:240:b5ff:ffff:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |