| Date | IP Address |
| 2023-07-03 | 23.65.2.181 (ClassC) |
| 2023-08-25 | 23.195.231.111 (ClassC) |
| 2023-11-02 | 104.112.188.167 (ClassC) |
| 2024-08-10 | 88.221.153.228 (ClassC) |
| 2024-09-12 | 23.6.103.50 (ClassC) |
| 2024-09-27 | 23.54.19.161 (ClassC) |
| 2024-10-05 | 23.192.230.135 (ClassC) |
| 2024-11-24 | 23.44.175.184 (ClassC) |
| 2024-12-06 | 23.54.19.171 (ClassC) |
| 2024-12-23 | 23.192.230.144 (ClassC) |
| 2024-12-28 | 23.192.230.148 (ClassC) |
| Date | Domain | IP |
| uat1.citibank.com.hk | 2024-11-14 | 192.193.22.22 |
| globalcommonbuild.uat1.citibank.com.hk | 2023-08-25 | 23.222.150.199 |
| www1.citibank.com.hk | 2024-09-12 | 23.222.144.140 |
| content22.citibank.com.hk | 2024-09-17 | 192.225.158.132 |
| uat2.msa.citibank.com.hk | 2024-04-11 | 92.123.203.91 |
| uat.msa.citibank.com.hk | 2024-12-28 | 104.90.249.145 |
| www.citigold.citibank.com.hk | 2024-11-14 | 192.193.133.154 |
| mobile.citibank.com.hk | 2023-08-25 | 23.6.111.17 |
| image.email.citibank.com.hk | 2024-02-21 | 95.101.160.246 |
| click.email.citibank.com.hk | 2024-12-19 | 13.111.18.12 |
| image.uat.email.citibank.com.hk | 2023-08-25 | 23.195.237.25 |
| click.uat.email.citibank.com.hk | 2024-12-19 | 13.111.18.12 |
| smetrics.citibank.com.hk | 2024-09-17 | 63.140.37.158 |
| globalcommonbuild.uat.citibank.com.hk | 2024-09-12 | 104.90.241.195 |
| www.citibank.com.hk | 2023-08-25 | 23.195.231.111 |