| Date | IP Address |
| 2018-10-16 | 107.23.239.249 (ClassC) |
| 2019-09-18 | 13.249.134.105 (ClassC) |
| 2019-09-18 | 13.226.15.88 (ClassC) |
| 2020-08-20 | 52.85.77.57 (ClassC) |
| 2020-08-20 | 52.85.77.90 (ClassC) |
| 2020-08-20 | 52.85.77.94 (ClassC) |
| 2020-08-20 | 52.85.77.110 (ClassC) |
| 2021-07-22 | 13.227.42.10 (ClassC) |
| 2021-07-22 | 13.227.42.128 (ClassC) |
| 2024-05-29 | 204.246.191.39 (ClassC) |
| 2024-09-29 | 204.246.191.111 (ClassC) |
| 2025-01-12 | 18.238.238.37 (ClassC) |
| Date | Domain | IP |
| apiqa.spamresponse.com | 2024-11-28 | 3.163.24.71 |
| apistaging.spamresponse.com | 2024-05-29 | 204.246.191.39 |
| api.spamresponse.com | 2024-09-09 | 18.161.6.39 |
| apidev.spamresponse.com | 2025-01-02 | 18.161.6.75 |