| Date | IP Address |
| 2019-08-23 | 104.102.249.8 (ClassC) |
| 2020-03-12 | 104.123.152.146 (ClassC) |
| 2020-03-28 | 104.123.152.178 (ClassC) |
| 2020-05-30 | 23.67.242.16 (ClassC) |
| 2021-07-13 | 23.47.49.42 (ClassC) |
| 2021-09-22 | 184.25.123.200 (ClassC) |
| 2024-05-18 | 23.219.78.166 (ClassC) |
| 2024-07-12 | 23.213.34.146 (ClassC) |
| 2024-07-29 | 23.216.147.9 (ClassC) |
| 2024-10-06 | 23.213.175.96 (ClassC) |
| 2024-10-12 | 23.53.122.137 (ClassC) |
| 2024-10-17 | 23.215.176.34 (ClassC) |
| 2024-10-31 | 23.44.175.10 (ClassC) |
| Date | Domain | IP |
| www.preprod-internet.zeiss.rs | 2024-02-18 | 23.38.194.211 |
| www.stage-internet.zeiss.rs | 2024-05-23 | 23.219.78.167 |
| www.zeiss.rs | 2024-05-18 | 23.219.78.166 |