| Date | IP Address |
| 2022-02-12 | 54.92.75.109 (ClassC) |
| 2023-09-15 | 54.64.58.75 (ClassC) |
| 2025-01-16 | 3.115.99.248 (ClassC) |
| 2025-02-22 | 52.68.169.93 (ClassC) |
| 2025-03-17 | 54.248.97.253 (ClassC) |
| 2025-05-11 | 54.64.210.0 (ClassC) |
| 2025-07-15 | 52.192.135.147 (ClassC) |
| 2025-08-01 | 43.207.25.93 (ClassC) |
| 2025-08-22 | 35.77.166.173 (ClassC) |
| 2025-09-02 | 46.51.242.124 (ClassC) |
| 2025-10-29 | 52.68.2.40 (ClassC) |
| 2025-11-08 | 3.115.131.101 (ClassC) |
| 2025-11-29 | 18.176.126.169 (ClassC) |
| Date | Domain | IP |
| prodalt.els-nursingskills.kr | 2025-03-04 | 104.18.43.42 |
| www.els-nursingskills.kr | 2025-02-22 | 52.68.169.93 |