| Date | IP Address |
| 2020-12-09 | 13.32.192.10 (ClassC) |
| 2020-12-09 | 13.32.192.29 (ClassC) |
| 2020-12-09 | 13.32.192.9 (ClassC) |
| 2021-01-13 | 13.32.183.55 (ClassC) |
| 2021-03-12 | 54.230.162.57 (ClassC) |
| 2022-07-12 | 13.227.74.119 (ClassC) |
| 2023-08-26 | 13.35.121.50 (ClassC) |
| 2024-05-01 | 172.64.144.35 (ClassC) |
| 2024-08-19 | 104.18.14.97 (ClassC) |
| 2025-08-09 | 104.18.33.175 (ClassC) |
| 2025-11-17 | 172.64.154.81 (ClassC) |
| Date | Domain | IP |
| www.pfizer.bg | 2025-01-17 | 172.64.154.81 |