| Date | IP Address |
| 2021-04-25 | 99.84.189.19 (ClassC) |
| 2021-04-25 | 99.84.189.27 (ClassC) |
| 2021-05-02 | 99.84.176.10 (ClassC) |
| 2021-12-14 | 13.249.74.59 (ClassC) |
| 2022-03-16 | 99.84.224.113 (ClassC) |
| 2022-03-16 | 99.84.224.215 (ClassC) |
| 2022-05-13 | 143.204.146.6 (ClassC) |
| 2022-08-05 | 99.84.192.108 (ClassC) |
| 2022-09-17 | 13.33.65.3 (ClassC) |
| 2022-09-18 | 108.138.64.116 (ClassC) |
| 2023-05-13 | 99.84.238.207 (ClassC) |
| 2024-06-24 | 104.18.43.90 (ClassC) |
| 2024-07-01 | 172.64.144.166 (ClassC) |
| 2024-07-22 | 104.18.27.70 (ClassC) |
| 2024-08-11 | 104.18.26.70 (ClassC) |
| 2025-05-10 | 104.18.33.14 (ClassC) |
| 2026-01-27 | 172.64.154.242 (ClassC) |
| Date | Domain | IP |
| www.discoverpfizerimmunology.com | 2023-12-01 | 104.18.43.90 |