| Date | IP Address |
| 2017-08-18 | 202.74.34.38 (ClassC) |
| 2021-05-27 | 52.76.167.116 (ClassC) |
| 2021-05-27 | 54.169.103.216 (ClassC) |
| 2021-05-27 | 13.250.166.176 (ClassC) |
| 2022-04-27 | 52.220.174.24 (ClassC) |
| 2022-04-27 | 18.140.170.218 (ClassC) |
| 2022-04-27 | 3.1.173.216 (ClassC) |
| 2025-03-20 | 13.250.147.111 (ClassC) |
| 2025-05-15 | 13.228.210.159 (ClassC) |
| 2025-07-15 | 13.250.85.242 (ClassC) |
| 2025-09-06 | 54.179.43.138 (ClassC) |
| 2025-11-16 | 54.179.244.129 (ClassC) |
| 2026-01-21 | 13.215.81.216 (ClassC) |
| 2026-01-26 | 47.130.245.54 (ClassC) |
| Date | Domain | IP |
| services.iress.com.sg | 2025-03-19 | 52.63.171.199 |
| webservices4mobile.test.iress.com.sg | 2025-11-10 | 52.77.59.224 |
| datatest.iress.com.sg | 2025-03-19 | 18.142.189.151 |
| viewpointtest.iress.com.sg | 2025-03-20 | 13.250.147.111 |
| www.iress.com.sg | 2025-09-12 | 3.9.152.105 |