| 2001:240:1f2:17:: | 2001:240:1f2:17:ffff:ffff:ffff:ffff | Japan Broadcasting Corporation |
| 2001:240:1f2:18:: | 2001:240:1f2:18:ffff:ffff:ffff:ffff | KEI Advanced Inc. |
| 2001:240:1f2:19:: | 2001:240:1f2:19:ffff:ffff:ffff:ffff | IIJ Global Solutions Inc. |
| 2001:240:1f2:1a:: | 2001:240:1f2:1a:ffff:ffff:ffff:ffff | ATM Japan, Ltd. |
| 2001:240:1f2:1b:: | 2001:240:1f2:1b:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:1f2:1c:: | 2001:240:1f2:1c:ffff:ffff:ffff:ffff | TDmobile Corporation |
| 2001:240:1f2:1d:: | 2001:240:1f2:1d:ffff:ffff:ffff:ffff | NX INFORMATION SYSTEMS CO., LTD. |
| 2001:240:1f2:1e:: | 2001:240:1f2:1e:ffff:ffff:ffff:ffff | Internet Initiative Japan Inc. |
| 2001:240:1f2:1f:: | 2001:240:1f2:1f:ffff:ffff:ffff:ffff | INNOTECH CORPORATION |
| 2001:240:1f2:20:: | 2001:240:1f2:20:ffff:ffff:ffff:ffff | WEST JAPAN Railway Daily Service Net Company |