| Date | IP Address |
| 2021-11-14 | 13.249.74.109 (ClassC) |
| 2021-11-14 | 13.249.74.54 (ClassC) |
| 2022-09-02 | 52.222.149.107 (ClassC) |
| 2022-09-15 | 18.65.39.48 (ClassC) |
| 2022-09-15 | 18.65.39.20 (ClassC) |
| 2023-06-07 | 99.84.238.140 (ClassC) |
| 2023-10-24 | 172.64.148.88 (ClassC) |
| 2024-06-08 | 104.18.39.168 (ClassC) |
| 2024-08-01 | 104.18.21.70 (ClassC) |
| 2024-08-07 | 104.18.20.70 (ClassC) |
| 2025-04-14 | 172.64.151.114 (ClassC) |
| 2025-04-26 | 104.18.36.142 (ClassC) |
| Date | Domain | IP |
| www.pfizer.co.kr | 2025-03-23 | 104.18.36.142 |