| Date | IP Address |
| 2021-09-28 | 13.225.231.111 (ClassC) |
| 2021-09-28 | 13.225.231.112 (ClassC) |
| 2021-09-28 | 13.225.231.169 (ClassC) |
| 2021-09-28 | 13.225.231.68 (ClassC) |
| 2021-10-12 | 13.249.137.110 (ClassC) |
| 2021-10-12 | 13.249.137.114 (ClassC) |
| 2021-10-12 | 13.249.137.29 (ClassC) |
| 2021-10-12 | 13.249.137.85 (ClassC) |
| 2022-06-30 | 13.249.141.16 (ClassC) |
| 2022-06-30 | 13.249.141.90 (ClassC) |
| 2022-06-30 | 13.249.141.99 (ClassC) |
| 2022-06-30 | 13.249.141.107 (ClassC) |
| 2022-08-29 | 108.156.120.99 (ClassC) |
| 2022-08-29 | 108.156.120.12 (ClassC) |
| 2022-08-29 | 108.156.120.26 (ClassC) |
| 2022-08-29 | 108.156.120.51 (ClassC) |
| 2024-10-24 | 172.67.138.196 (ClassC) |
| 2026-02-14 | 104.21.62.200 (ClassC) |
| Date | Domain | IP |
| 2022q1.pfizer-qr.com | 2025-06-22 | 104.21.62.200 |
| 2022q2.pfizer-qr.com | 2025-04-24 | 172.67.138.196 |
| 2022q3.pfizer-qr.com | 2025-08-08 | 104.21.62.200 |
| 2021q4.pfizer-qr.com | 2024-10-24 | 172.67.138.196 |