| Date | IP Address |
| 2020-06-27 | 35.213.166.138 (ClassC) |
| 2025-12-08 | 35.213.158.232 (ClassC) |
| Date | Domain | IP |
| oct2018.biz21.hk | 2025-10-15 | 35.213.158.232 |
| www.oct2018.biz21.hk | 2025-10-15 | 35.213.158.232 |
| 20140818.biz21.hk | 2025-10-12 | 35.213.158.232 |
| www.20140818.biz21.hk | 2025-10-14 | 35.213.158.232 |
| o1128.biz21.hk | 2025-10-15 | 35.213.158.232 |
| www.o1128.biz21.hk | 2025-10-14 | 35.213.158.232 |
| lent2019.biz21.hk | 2025-10-14 | 35.213.158.232 |
| www.lent2019.biz21.hk | 2025-10-14 | 35.213.158.232 |
| hkehc.biz21.hk | 2025-10-14 | 35.213.158.232 |
| www.hkehc.biz21.hk | 2025-10-16 | 35.213.158.232 |
| oasformlive.biz21.hk | 2025-10-14 | 35.213.158.232 |
| www.oasformlive.biz21.hk | 2025-10-14 | 35.213.158.232 |
| padmin.biz21.hk | 2019-09-08 | 37.60.254.72 |
| www.padmin.biz21.hk | 2025-10-14 | 35.213.158.232 |
| info.biz21.hk | 2025-10-14 | 35.213.158.232 |
| www.info.biz21.hk | 2025-10-15 | 35.213.158.232 |
| qr.biz21.hk | 2025-12-08 | 35.213.158.232 |
| www.qr.biz21.hk | 2025-10-15 | 35.213.158.232 |
| cbs.biz21.hk | 2025-12-05 | 35.213.158.232 |
| www.cbs.biz21.hk | 2025-10-16 | 35.213.158.232 |
| scs.biz21.hk | 2025-10-26 | 35.213.158.232 |
| www.scs.biz21.hk | 2025-12-08 | 35.213.158.232 |
| eat.biz21.hk | 2025-10-12 | 35.213.158.232 |
| oasformnet.biz21.hk | 2025-10-16 | 35.213.158.232 |
| www.oasformnet.biz21.hk | 2025-12-07 | 35.213.158.232 |
| www.biz21.hk | 2025-12-08 | 35.213.158.232 |