| Date | IP Address |
| 2020-10-12 | 99.84.41.157 (ClassC) |
| 2020-10-12 | 99.84.41.168 (ClassC) |
| 2023-07-23 | 23.45.123.33 (ClassC) |
| 2025-10-31 | 23.59.88.232 (ClassC) |
| 2025-11-13 | 23.192.230.140 (ClassC) |
| 2025-12-20 | 23.55.167.27 (ClassC) |
| 2026-03-06 | 23.192.230.137 (ClassC) |
| Date | Domain | IP |
| hongkong.regenthotels.com | 2026-01-18 | 35.194.236.124 |
| qap.regenthotels.com | 2024-02-20 | 23.44.175.173 |
| www.regenthotels.com | 2014-10-14 | 93.184.221.133 |
| staging.www.regenthotels.com | 2026-01-19 | 23.55.167.8 |
| qap.www.regenthotels.com | 2024-07-07 | 23.44.175.173 |
| identity.regenthotels.com | 2025-10-31 | 23.59.88.232 |