| Date | IP Address |
| 2019-06-06 | 23.207.41.167 (ClassC) |
| 2021-04-13 | 184.84.84.56 (ClassC) |
| 2023-08-25 | 104.90.249.203 (ClassC) |
| 2024-09-03 | 23.202.205.102 (ClassC) |
| 2024-09-21 | 23.223.220.65 (ClassC) |
| 2025-05-02 | 23.196.146.62 (ClassC) |
| 2025-06-28 | 23.202.205.96 (ClassC) |
| 2025-09-06 | 104.92.252.2 (ClassC) |
| 2025-09-13 | 23.213.23.239 (ClassC) |
| 2025-09-25 | 23.196.195.85 (ClassC) |
| Date | Domain | IP |
| sit.apihub.citi.com | 2023-08-25 | 104.90.249.203 |
| sandbox.apihub.citi.com | 2023-08-25 | 104.90.249.203 |
| qa.sandbox.apihub.citi.com | 2023-08-25 | 104.90.249.203 |
| preview.sandbox.apihub.citi.com | 2023-08-25 | 104.90.249.203 |