| Date | IP Address |
| 2025-05-11 | 104.21.74.87 (ClassC) |
| 2026-02-07 | 172.67.156.106 (ClassC) |
| Date | Domain | IP |
| webdisk.hdic.edu.lk | 2025-04-06 | 104.21.74.87 |
| cpanel.hdic.edu.lk | 2025-04-05 | 104.21.74.87 |
| mail.hdic.edu.lk | 2025-05-11 | 104.21.74.87 |
| webmail.hdic.edu.lk | 2025-05-28 | 104.21.74.87 |
| cpcalendars.hdic.edu.lk | 2025-04-06 | 172.67.156.106 |
| cpcontacts.hdic.edu.lk | 2025-04-06 | 172.67.156.106 |
| www.hdic.edu.lk | 2025-04-06 | 104.21.74.87 |