| Date | IP Address |
| 2015-12-04 | 52.76.179.160 (ClassC) |
| 2016-07-02 | 52.85.209.110 (ClassC) |
| 2016-07-19 | 52.85.209.41 (ClassC) |
| 2016-10-11 | 52.84.66.90 (ClassC) |
| 2017-03-16 | 52.84.3.34 (ClassC) |
| 2017-03-24 | 52.84.3.74 (ClassC) |
| 2025-08-20 | 203.69.66.155 (ClassC) |
| 2026-01-22 | 220.228.175.30 (ClassC) |
| Date | Domain | IP |
| p1.591.com.hk | 2024-06-04 | 99.84.66.13 |
| p2.591.com.hk | 2025-10-24 | 203.69.66.155 |
| pub.591.com.hk | 2024-10-12 | 99.84.66.25 |
| sale.591.com.hk | 2025-09-27 | 203.69.66.155 |
| help.591.com.hk | 2025-05-09 | 203.69.66.155 |
| statics.591.com.hk | 2024-09-18 | 99.84.66.25 |
| tajs.591.com.hk | 2024-10-04 | 18.238.217.25 |
| ms.591.com.hk | 2024-10-04 | 99.84.66.25 |
| rent.591.com.hk | 2025-08-20 | 203.69.66.155 |
| www.591.com.hk | 2013-12-05 | 203.119.2.120 |