| Date | IP Address |
| 2023-09-22 | 104.88.195.115 (ClassC) |
| 2023-09-24 | 104.102.248.147 (ClassC) |
| 2023-10-02 | 23.63.73.209 (ClassC) |
| 2023-11-13 | 23.48.104.111 (ClassC) |
| 2024-10-02 | 23.41.4.85 (ClassC) |
| 2024-11-24 | 23.46.17.58 (ClassC) |
| 2024-12-12 | 23.54.19.145 (ClassC) |
| 2025-01-24 | 23.54.19.176 (ClassC) |
| 2025-04-19 | 23.46.228.168 (ClassC) |
| 2025-07-09 | 23.46.228.167 (ClassC) |
| 2025-11-15 | 23.216.147.194 (ClassC) |
| 2025-12-07 | 23.216.147.206 (ClassC) |
| Date | Domain | IP |
| pre.apis.santander.com | 2024-11-24 | 23.46.17.58 |
| sandbox.pre.apis.santander.com | 2024-10-02 | 23.41.4.85 |
| ark.apis.santander.com | 2024-09-13 | 45.60.195.69 |
| cards.apis.santander.com | 2024-09-21 | 45.60.195.69 |
| dev.apis.santander.com | 2024-06-30 | 23.41.4.76 |
| sandbox.apis.santander.com | 2024-08-04 | 23.41.4.84 |