| 2001:240:1f1:ab:: | 2001:240:1f1:ab:ffff:ffff:ffff:ffff | The Japan Research Institute, Limited |
| 2001:240:1f1:ac:: | 2001:240:1f1:ac:ffff:ffff:ffff:ffff | KEI Advanced Inc. |
| 2001:240:1f1:ad:: | 2001:240:1f1:ad:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:1f1:ae:: | 2001:240:1f1:ae:ffff:ffff:ffff:ffff | NISSEICOM, LIMITED |
| 2001:240:1f1:af:: | 2001:240:1f1:af:ffff:ffff:ffff:ffff | Sanyo Chemical Industries, Ltd. |
| 2001:240:1f1:b0:: | 2001:240:1f1:b0:ffff:ffff:ffff:ffff | Seirei Welfare Community |
| 2001:240:1f1:b1:: | 2001:240:1f1:b1:ffff:ffff:ffff:ffff | K-engine Corp. |
| 2001:240:1f1:b2:: | 2001:240:1f1:b2:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:1f1:b3:: | 2001:240:1f1:b3:ffff:ffff:ffff:ffff | Pasona Inc. |
| 2001:240:1f1:b4:: | 2001:240:1f1:b4:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |