| Date | IP Address |
| 2020-07-19 | 47.52.195.64 (ClassC) |
| 2021-01-15 | 27.124.6.65 (ClassC) |
| 2021-04-13 | 202.95.14.21 (ClassC) |
| 2021-05-14 | 14.128.63.82 (ClassC) |
| 2025-05-09 | 172.67.175.163 (ClassC) |
| 2026-01-22 | 104.21.67.131 (ClassC) |
| Date | Domain | IP |
| mail.yc49.com | 2025-04-13 | 104.21.67.131 |
| vpn.yc49.com | 2025-05-04 | 172.67.175.163 |
| ftp.yc49.com | 2024-10-07 | 172.67.175.163 |
| server.yc49.com | 2025-07-12 | 104.21.67.131 |
| https.yc49.com | 2025-09-17 | 104.167.65.138 |
| mx.yc49.com | 2025-04-25 | 172.67.175.163 |