| Date | IP Address |
| 2023-11-24 | 54.149.226.186 (ClassC) |
| 2024-10-26 | 35.161.29.180 (ClassC) |
| 2024-11-26 | 52.88.151.203 (ClassC) |
| 2025-03-04 | 52.41.248.62 (ClassC) |
| 2025-05-09 | 52.10.100.88 (ClassC) |
| 2025-05-27 | 44.233.238.28 (ClassC) |
| 2026-02-02 | 35.84.57.224 (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 |