| Date | IP Address |
| 2022-05-07 | 143.204.146.105 (ClassC) |
| 2022-05-07 | 143.204.146.113 (ClassC) |
| 2025-03-05 | 18.161.6.91 (ClassC) |
| 2025-05-19 | 18.161.6.67 (ClassC) |
| 2025-06-22 | 18.161.6.75 (ClassC) |
| 2026-01-15 | 3.169.173.26 (ClassC) |
| 2026-02-13 | 3.169.173.119 (ClassC) |
| Date | Domain | IP |
| oecd.oupchina.com.hk | 2024-06-10 | 13.215.187.219 |
| flashcard.oupchina.com.hk | 2025-01-19 | 99.84.66.86 |
| staging.oupchina.com.hk | 2025-06-25 | 52.76.138.122 |
| preprod.pth-speak-assess.oupchina.com.hk | 2025-05-08 | 54.230.125.199 |
| uat.pth-speak-assess.oupchina.com.hk | 2024-11-24 | 13.224.9.165 |
| chi-classic-texts.oupchina.com.hk | 2025-03-05 | 18.161.6.91 |
| account.oupchina.com.hk | 2021-07-24 | 99.84.64.70 |
| preprod.account.oupchina.com.hk | 2024-08-26 | 18.161.6.102 |
| www.oupchina.com.hk | 2026-01-19 | 52.76.138.122 |