| Date | IP Address |
| 2021-09-20 | 23.47.51.133 (ClassC) |
| 2022-01-15 | 23.52.42.190 (ClassC) |
| 2022-03-22 | 172.232.13.49 (ClassC) |
| 2022-04-04 | 184.51.3.155 (ClassC) |
| 2022-04-07 | 104.114.79.51 (ClassC) |
| 2022-04-20 | 23.221.22.85 (ClassC) |
| 2022-05-05 | 23.213.53.77 (ClassC) |
| 2022-05-10 | 23.33.22.19 (ClassC) |
| 2022-05-10 | 23.33.22.21 (ClassC) |
| 2022-05-14 | 184.30.31.115 (ClassC) |
| 2022-05-14 | 184.30.31.144 (ClassC) |
| 2022-07-14 | 23.59.177.210 (ClassC) |
| 2025-07-01 | 23.41.4.86 (ClassC) |
| 2025-08-01 | 23.41.4.78 (ClassC) |
| Date | Domain | IP |
| api.id.ntuclink.com.sg | 2025-02-23 | 23.41.4.78 |
| auth.ntuclink.com.sg | 2025-07-01 | 23.41.4.86 |
| preprod-auth.ntuclink.com.sg | 2024-03-14 | 3.163.24.111 |
| capricorn.ntuclink.com.sg | 2025-03-20 | 203.116.237.4 |
| account.ntuclink.com.sg | 2025-01-02 | 23.41.4.78 |