| IPv4 Address Range | Source | Original Date of Allocation/Assignment | Recipient | Date of Transfer | Remarks |
|---|---|---|---|---|---|
| 157.17.32.0/20 | Reitaku University | 1991-12-10 | SAKURA Internet Inc. | 2021-07-26 | |
| 157.17.48.0/20 | |||||
| 157.17.64.0/20 | |||||
| 157.17.82.0/23 | |||||
| 157.17.84.0/22 | |||||
| 157.17.88.0/21 | |||||
| 157.17.112.0/20 |
