| Date | IP Address |
| 2019-08-08 | 172.217.212.121 (ClassC) |
| 2019-10-08 | 173.194.196.121 (ClassC) |
| 2020-06-11 | 64.233.182.121 (ClassC) |
| 2024-02-27 | 142.250.217.83 (ClassC) |
| 2024-10-06 | 142.250.217.115 (ClassC) |
| 2024-11-05 | 142.251.33.115 (ClassC) |
| 2025-01-11 | 142.251.33.83 (ClassC) |
| 2025-08-27 | 74.125.199.121 (ClassC) |
| Date | Domain | IP |
| 201907.jsai.or.jp | 2024-07-31 | 142.251.33.83 |
| 201908.jsai.or.jp | 2024-02-27 | 142.250.217.83 |
| www.jsai.or.jp | 2024-11-12 | 142.251.211.243 |