| Date | IP Address |
| 2019-10-03 | 172.232.13.49 (ClassC) |
| 2020-04-18 | 63.239.232.31 (ClassC) |
| 2020-10-27 | 104.119.189.232 (ClassC) |
| 2021-04-28 | 23.218.224.22 (ClassC) |
| 2023-03-13 | 23.213.53.75 (ClassC) |
| 2024-09-19 | 23.46.17.11 (ClassC) |
| 2024-11-25 | 23.54.19.169 (ClassC) |
| 2025-04-10 | 23.46.228.177 (ClassC) |
| Date | Domain | IP |
| nsc.test.linde.com | 2024-08-14 | 23.54.19.169 |
| nsc.hk.test.linde.com | 2024-09-08 | 23.54.19.169 |
| nsc.cn.test.linde.com | 2024-09-19 | 23.46.17.11 |
| telemetry.cn.test.linde.com | 2025-02-28 | 20.79.225.155 |
| telemetry.test.linde.com | 2025-02-28 | 20.79.234.73 |