| Date | IP Address |
| 2024-01-04 | 23.194.131.9 (ClassC) |
| 2024-02-07 | 104.71.218.123 (ClassC) |
| 2024-08-10 | 104.96.163.139 (ClassC) |
| 2024-09-15 | 23.41.4.80 (ClassC) |
| 2024-09-22 | 23.41.4.74 (ClassC) |
| 2024-10-20 | 23.222.17.236 (ClassC) |
| 2024-11-07 | 96.17.193.13 (ClassC) |
| 2024-11-24 | 23.41.4.77 (ClassC) |
| 2025-05-26 | 96.16.54.115 (ClassC) |
| 2026-01-29 | 23.41.4.79 (ClassC) |
| Date | Domain | IP |
| www.thymn2.nissay.co.jp | 2019-03-05 | 210.226.51.128 |
| www.michl-ia.nissay.co.jp | 2025-10-16 | 180.233.109.235 |
| www.account-h.nissay.co.jp | 2026-01-18 | 23.41.4.77 |
| authentication.api.nissay.co.jp | 2024-06-30 | 23.41.4.74 |
| developers.api.nissay.co.jp | 2026-01-03 | 52.193.199.140 |
| image.n-mail.nissay.co.jp | 2025-01-24 | 23.54.33.137 |
| click.n-mail.nissay.co.jp | 2025-10-17 | 136.147.189.179 |
| gitlab.mgmt.kdorigin-jt.nissay.co.jp | 2025-11-18 | 104.18.15.228 |
| hi.kdorigin-st.nissay.co.jp | 2025-09-11 | 104.18.6.76 |
| www.nissay.co.jp | 2024-08-10 | 104.96.163.139 |