| Date | IP Address |
| 2014-05-02 | 202.32.173.84 (ClassC) |
| 2023-01-06 | 54.178.196.210 (ClassC) |
| 2024-06-17 | 172.64.154.244 (ClassC) |
| 2024-06-24 | 104.18.33.12 (ClassC) |
| 2024-07-29 | 104.18.25.72 (ClassC) |
| 2024-08-10 | 104.18.24.72 (ClassC) |
| 2026-02-19 | 104.18.43.243 (ClassC) |
| 2026-02-25 | 172.64.144.13 (ClassC) |
| Date | Domain | IP |
| www.pfizerpro.jp | 2025-02-02 | 104.18.43.243 |