| Date | IP Address |
| 2021-12-05 | 3.33.136.22 (ClassC) |
| 2023-11-01 | 15.197.150.145 (ClassC) |
| 2024-10-24 | 34.254.136.212 (ClassC) |
| 2024-11-29 | 34.255.187.188 (ClassC) |
| 2025-01-27 | 52.211.19.195 (ClassC) |
| 2025-03-29 | 34.247.140.47 (ClassC) |
| 2025-05-04 | 54.76.94.10 (ClassC) |
| 2025-06-23 | 52.18.78.93 (ClassC) |
| 2025-08-30 | 34.251.85.151 (ClassC) |
| 2025-11-25 | 52.17.73.212 (ClassC) |
| 2026-02-05 | 52.210.200.150 (ClassC) |
| 2026-02-26 | 54.246.179.120 (ClassC) |
| Date | Domain | IP |
| webmail.telfort.nl | 2025-09-06 | 195.121.65.131 |
| forum.telfort.nl | 2024-03-16 | 3.33.136.22 |
| 77-173-168-189.ip.telfort.nl | 2014-06-05 | 77.173.168.189 |
| smtp.telfort.nl | 2014-06-20 | 213.75.63.9 |
| zzp.telfort.nl | 2026-02-23 | 54.246.179.120 |
| www.telfort.nl | 2023-11-01 | 15.197.150.145 |