| Date | IP Address |
| 2022-01-06 | 52.25.238.129 (ClassC) |
| 2023-04-22 | 54.214.69.34 (ClassC) |
| 2023-06-09 | 52.25.31.191 (ClassC) |
| 2024-04-14 | 52.41.13.147 (ClassC) |
| 2024-05-13 | 52.39.35.210 (ClassC) |
| 2024-06-25 | 52.42.81.24 (ClassC) |
| 2024-08-20 | 54.201.3.169 (ClassC) |
| 2024-10-28 | 54.191.8.82 (ClassC) |
| 2024-11-25 | 44.226.201.98 (ClassC) |
| 2024-12-17 | 52.32.17.28 (ClassC) |
| 2025-03-15 | 35.166.207.63 (ClassC) |
| 2025-08-20 | 44.237.164.118 (ClassC) |
| 2025-08-31 | 50.112.60.77 (ClassC) |
| 2025-11-01 | 52.27.243.118 (ClassC) |
| 2025-12-29 | 44.232.89.196 (ClassC) |
| 2026-02-04 | 34.213.167.15 (ClassC) |
| 2026-02-08 | 34.210.188.219 (ClassC) |
| 2026-02-23 | 44.236.82.40 (ClassC) |
| Date | Domain | IP |
| cm.amgen.co.jp | 2024-04-12 | 54.213.105.231 |
| uat.cm.amgen.co.jp | 2025-10-20 | 35.81.104.173 |
| dev.cm.amgen.co.jp | 2025-01-16 | 54.69.189.125 |
| products.amgen.co.jp | 2025-07-13 | 34.210.177.23 |
| www.products.amgen.co.jp | 2025-09-16 | 44.242.7.231 |
| uat.amgen.co.jp | 2025-10-19 | 35.81.104.173 |
| dev.amgen.co.jp | 2025-01-21 | 35.165.148.237 |
| preview.amgen.co.jp | 2026-02-02 | 35.84.57.224 |
| www.amgen.co.jp | 2024-04-14 | 52.41.13.147 |