| Date | IP Address |
| 2018-10-12 | 52.85.89.131 (ClassC) |
| 2018-10-12 | 52.85.89.210 (ClassC) |
| 2018-10-12 | 52.85.89.84 (ClassC) |
| 2018-10-15 | 13.33.74.49 (ClassC) |
| 2018-10-15 | 13.33.74.55 (ClassC) |
| 2019-05-06 | 13.249.44.12 (ClassC) |
| 2019-05-06 | 52.84.134.115 (ClassC) |
| 2019-05-06 | 54.230.123.142 (ClassC) |
| 2019-05-06 | 52.84.134.142 (ClassC) |
| 2019-07-29 | 13.33.76.179 (ClassC) |
| 2019-09-25 | 13.226.38.95 (ClassC) |
| 2019-11-11 | 13.226.38.10 (ClassC) |
| 2019-11-11 | 13.226.38.86 (ClassC) |
| 2020-04-26 | 13.225.210.12 (ClassC) |
| 2020-06-23 | 13.226.205.24 (ClassC) |
| 2021-06-09 | 65.8.227.7 (ClassC) |
| 2021-06-09 | 65.8.227.86 (ClassC) |
| 2022-05-18 | 13.224.226.28 (ClassC) |
| 2024-07-16 | 3.163.24.46 (ClassC) |
| 2024-09-18 | 204.246.191.4 (ClassC) |
| 2024-11-30 | 3.163.24.64 (ClassC) |
| 2024-12-05 | 13.224.14.22 (ClassC) |
| 2024-12-14 | 3.163.24.72 (ClassC) |
| 2025-02-24 | 99.84.66.67 (ClassC) |
| 2025-03-01 | 13.224.14.115 (ClassC) |
| 2025-04-15 | 204.246.191.117 (ClassC) |
| 2025-07-03 | 204.246.191.5 (ClassC) |
| 2025-08-28 | 13.224.14.55 (ClassC) |
| 2025-09-12 | 3.169.173.7 (ClassC) |
| Date | Domain | IP |
| preview5.synthroid.com | 2019-07-13 | 100.25.240.102 |
| www.synthroid.com | 2024-07-16 | 3.163.24.46 |