| 2400:4010:43d:: | 2400:4010:43d:ffff:ffff:ffff:ffff:ffff | NTT COMMUNICATIONS CORPORATION |
| 2400:4010:43e:: | 2400:4010:43e:ffff:ffff:ffff:ffff:ffff | NTT Communications Corporation |
| 2400:4010:43f:: | 2400:4010:ffff:ffff:ffff:ffff:ffff:ffff | NTT COMMUNICATIONS CORPORATION |
| 2400:4011:: | 2400:403f:ffff:ffff:ffff:ffff:ffff:ffff | NTT DOCOMO BUSINESS,Inc. |
| 2400:4040:: | 2400:4040:0:ffff:ffff:ffff:ffff:ffff | NTT COMMUNICATIONS CORPORATION |
| 2400:4040:1:: | 2400:4040:1:ffff:ffff:ffff:ffff:ffff | TOKAI TELEVISION BROADCASTING Co.,Ltd |
| 2400:4040:2:: | 2400:4040:3:ffff:ffff:ffff:ffff:ffff | SOHGO SECURITY SERVICES CO.,LTD |
| 2400:4040:4:: | 2400:4040:4:ffff:ffff:ffff:ffff:ffff | NTT COMMUNICATIONS CORPORATION |
| 2400:4040:5:: | 2400:4040:5:ffff:ffff:ffff:ffff:ffff | NTT Communications Corporation |
| 2400:4040:6:: | 2400:4040:6:ffff:ffff:ffff:ffff:ffff | NTT COMMUNICATIONS CORPORATION |