| Date | IP Address |
| 2022-07-12 | 13.249.139.31 (ClassC) |
| 2022-07-13 | 18.64.183.18 (ClassC) |
| 2025-01-08 | 3.163.189.6 (ClassC) |
| 2025-04-01 | 99.84.66.97 (ClassC) |
| 2025-04-22 | 3.163.24.11 (ClassC) |
| 2025-05-12 | 3.163.189.106 (ClassC) |
| 2025-05-25 | 3.163.189.94 (ClassC) |
| 2025-07-15 | 3.163.24.66 (ClassC) |
| 2025-09-06 | 99.84.66.19 (ClassC) |
| 2025-10-14 | 3.163.24.124 (ClassC) |
| Date | Domain | IP |
| alpha.hopper.tax.amazon.dev | 2024-11-28 | 18.238.217.43 |
| beta.hopper.tax.amazon.dev | 2025-05-09 | 204.246.191.56 |
| api.beta.hopper.tax.amazon.dev | 2024-04-09 | 3.214.135.111 |
| api.mrttre.hopper.tax.amazon.dev | 2023-11-24 | 52.205.119.75 |
| apiv2.nickbray.hopper.tax.amazon.dev | 2025-01-08 | 3.163.189.6 |