| Date | IP Address |
| 2021-09-21 | 209.85.145.83 (ClassC) |
| 2022-02-20 | 142.251.120.17 (ClassC) |
| 2025-09-14 | 94.127.7.144 (ClassC) |
| Date | Domain | IP |
| sinteza.singidunum.ac.rs | 2014-10-15 | 46.252.196.1 |
| forum.pfb.singidunum.ac.rs | 2014-07-15 | 46.252.196.1 |
| mail.singidunum.ac.rs | 2025-09-14 | 94.127.7.144 |
| synthesis.singidunum.ac.rs | 2015-02-27 | 46.252.196.1 |
| srb.synthesis.singidunum.ac.rs | 2015-02-16 | 46.252.196.1 |