| Date | IP Address |
| 2021-05-26 | 34.192.125.132 (ClassC) |
| 2021-05-26 | 34.224.148.46 (ClassC) |
| 2025-12-10 | 216.55.155.72 (ClassC) |
| 2026-01-03 | 216.55.155.71 (ClassC) |
| 2026-03-01 | 91.195.240.12 (ClassC) |
| Date | Domain | IP |
| 0nh27.ultrastamp.com | 2025-12-25 | 216.55.155.72 |
| 07ymc.ultrastamp.com | 2026-01-02 | 216.55.155.72 |
| 0cawo.ultrastamp.com | 2025-12-10 | 216.55.155.72 |