| Date | IP Address |
| 2020-06-07 | 13.226.138.10 (ClassC) |
| 2020-06-07 | 13.226.138.125 (ClassC) |
| 2020-07-19 | 13.249.85.8 (ClassC) |
| 2020-07-19 | 13.249.85.31 (ClassC) |
| 2020-07-19 | 13.249.85.74 (ClassC) |
| 2023-12-14 | 204.246.191.66 (ClassC) |
| 2024-11-07 | 99.86.38.100 (ClassC) |
| 2025-03-24 | 99.86.38.20 (ClassC) |
| 2025-04-12 | 204.246.191.9 (ClassC) |
| 2025-09-13 | 18.161.6.15 (ClassC) |
| Date | Domain | IP |
| authsmtp.stepexpert.nl | 2024-07-11 | 18.161.6.15 |
| www.stepexpert.nl | 2023-12-14 | 204.246.191.66 |