| Date | IP Address |
| 2021-11-09 | 13.249.137.114 (ClassC) |
| 2021-11-09 | 13.249.137.38 (ClassC) |
| 2022-08-25 | 18.160.200.10 (ClassC) |
| 2024-09-20 | 204.246.191.76 (ClassC) |
| 2024-11-14 | 204.246.191.58 (ClassC) |
| 2025-01-30 | 18.65.229.48 (ClassC) |
| 2025-08-30 | 99.84.66.21 (ClassC) |
| 2025-10-08 | 3.169.173.82 (ClassC) |
| Date | Domain | IP |
| auth.sandbox-sgdex.gov.sg | 2025-03-21 | 204.246.191.44 |
| api.sandbox-sgdex.gov.sg | 2024-09-20 | 204.246.191.76 |
| portal.sandbox-sgdex.gov.sg | 2025-03-21 | 18.161.6.6 |
| api.portal.sandbox-sgdex.gov.sg | 2025-03-19 | 3.163.24.13 |
| adapter.sandbox-sgdex.gov.sg | 2025-03-21 | 99.84.66.64 |