| Date | IP Address |
| 2023-07-28 | 23.45.123.41 (ClassC) |
| 2023-12-12 | 23.42.158.25 (ClassC) |
| 2024-02-27 | 23.44.175.154 (ClassC) |
| 2024-10-09 | 23.212.250.15 (ClassC) |
| 2025-05-17 | 23.55.167.25 (ClassC) |
| 2026-01-09 | 23.192.230.153 (ClassC) |
| Date | Domain | IP |
| image.email.ucb-usa.com | 2024-02-14 | 23.192.230.153 |
| image.updates.ucb-usa.com | 2025-05-17 | 23.55.167.25 |