| Date | IP Address |
| 2020-04-16 | 143.204.160.78 (ClassC) |
| 2020-05-09 | 13.32.85.35 (ClassC) |
| 2020-10-25 | 143.204.166.4 (ClassC) |
| 2020-10-25 | 143.204.166.66 (ClassC) |
| 2021-02-28 | 13.32.199.16 (ClassC) |
| 2022-04-18 | 13.35.122.36 (ClassC) |
| 2023-08-26 | 172.64.152.148 (ClassC) |
| 2024-07-22 | 104.18.16.116 (ClassC) |
| 2025-06-21 | 172.64.147.93 (ClassC) |
| 2025-08-13 | 104.18.40.163 (ClassC) |
| Date | Domain | IP |
| www.pfizeroncologyportfolio.com | 2025-01-20 | 172.64.147.93 |