| Date | IP Address |
| 2015-02-07 | 85.115.17.219 (ClassC) |
| 2019-09-27 | 188.94.254.132 (ClassC) |
| 2025-06-30 | 185.243.134.228 (ClassC) |
| 2026-02-06 | 104.21.51.196 (ClassC) |
| Date | Domain | IP |
| ns1.ec4u.de | 2025-09-19 | 62.116.129.129 |
| ns2.ec4u.de | 2025-05-26 | 62.116.163.100 |
| blog.ec4u.de | 2025-05-27 | 185.243.134.228 |
| mail.ec4u.de | 2025-08-15 | 85.115.17.221 |
| pharmacrm.ec4u.de | 2025-01-02 | 35.214.228.7 |
| autodiscover.ec4u.de | 2024-09-10 | 52.96.121.40 |
| www.ec4u.de | 2025-05-27 | 185.243.134.228 |