| Date | IP Address |
| 2022-10-13 | 3.66.251.197 (ClassC) |
| 2023-06-05 | 3.69.152.80 (ClassC) |
| 2023-11-01 | 52.28.42.228 (ClassC) |
| 2024-05-02 | 35.158.206.73 (ClassC) |
| 2024-05-04 | 3.73.175.81 (ClassC) |
| 2024-07-22 | 18.193.198.255 (ClassC) |
| 2024-09-10 | 3.120.18.27 (ClassC) |
| 2024-09-13 | 52.57.56.111 (ClassC) |
| 2024-11-24 | 18.192.163.139 (ClassC) |
| 2024-12-15 | 3.70.0.203 (ClassC) |
| 2024-12-21 | 3.126.195.247 (ClassC) |
| 2024-12-25 | 3.64.182.233 (ClassC) |
| 2025-01-16 | 18.194.211.116 (ClassC) |
| 2025-01-21 | 3.78.4.70 (ClassC) |
| 2025-03-23 | 3.121.133.101 (ClassC) |
| 2025-04-21 | 52.57.29.109 (ClassC) |
| 2025-04-27 | 18.158.216.41 (ClassC) |
| 2025-05-13 | 18.196.230.22 (ClassC) |
| 2025-06-04 | 52.28.119.236 (ClassC) |
| 2025-08-21 | 18.195.179.5 (ClassC) |
| 2025-08-26 | 3.124.202.167 (ClassC) |
| 2025-09-01 | 18.194.225.41 (ClassC) |
| 2025-10-10 | 52.29.108.134 (ClassC) |
| 2026-02-05 | 18.192.174.254 (ClassC) |
| 2026-02-24 | 3.123.188.181 (ClassC) |
| Date | Domain | IP |
| ww2.efs-survey.com | 2026-02-12 | 18.192.174.254 |
| ww3.efs-survey.com | 2024-11-24 | 18.192.163.139 |
| ww5.efs-survey.com | 2025-10-03 | 3.65.65.60 |
| sonova.efs-survey.com | 2025-11-23 | 195.66.99.102 |
| cc.efs-survey.com | 2025-08-06 | 195.66.99.102 |
| training.efs-survey.com | 2025-05-22 | 52.29.194.91 |
| opinion.efs-survey.com | 2026-02-19 | 195.66.99.102 |
| immonet.efs-survey.com | 2025-12-04 | 52.57.131.140 |
| www.efs-survey.com | 2023-11-01 | 52.28.42.228 |