| Date | IP Address |
| 2019-01-04 | 80.78.250.5 (ClassC) |
| 2024-07-08 | 5.101.152.102 (ClassC) |
| 2024-07-24 | 45.130.41.250 (ClassC) |
| 2024-09-08 | 185.244.219.230 (ClassC) |
| 2024-10-15 | 45.130.41.192 (ClassC) |
| 2026-02-05 | 172.67.131.69 (ClassC) |
| Date | Domain | IP |
| ctrigo.istra-edu.ru | 2025-12-23 | 104.21.10.89 |
| www.istra-edu.ru | 2024-10-06 | 45.130.41.192 |