| Date | IP Address |
| 2024-09-14 | 18.138.148.128 (ClassC) |
| 2025-12-11 | 18.139.168.204 (ClassC) |
| 2026-01-07 | 54.151.202.152 (ClassC) |
| 2026-01-17 | 54.255.230.227 (ClassC) |
| Date | Domain | IP |
| api.bxsearch.prod.ielts.com | 2025-12-14 | 18.139.220.51 |
| api.ors-cmds-integration.prod.ielts.com | 2024-05-30 | 13.228.100.166 |
| api.test-taker.prod.ielts.com | 2025-12-11 | 18.139.168.204 |
| examiner.ses.prod.ielts.com | 2025-09-28 | 3.163.24.13 |
| bx.prod.ielts.com | 2025-06-19 | 3.163.24.17 |
| backoffice.bx.prod.ielts.com | 2024-11-01 | 204.246.191.99 |