| Date | IP Address |
| 2025-04-05 | 3.163.24.125 (ClassC) |
| 2025-05-17 | 18.173.121.34 (ClassC) |
| 2026-01-18 | 3.163.24.23 (ClassC) |
| Date | Domain | IP |
| dev.file.lessontalk.co.kr | 2025-04-06 | 99.84.66.42 |
| local.api.lessontalk.co.kr | 2025-04-06 | 43.202.237.2 |
| dev.api.lessontalk.co.kr | 2025-04-05 | 3.37.245.144 |
| dev.lessontalk.co.kr | 2025-04-05 | 3.163.24.125 |
| www.lessontalk.co.kr | 2025-05-17 | 3.163.24.90 |