| Date | IP Address |
| 2022-05-17 | 3.219.4.169 (ClassC) |
| 2023-12-05 | 44.209.102.50 (ClassC) |
| 2024-04-18 | 3.93.113.18 (ClassC) |
| 2024-04-25 | 44.194.148.30 (ClassC) |
| 2025-03-07 | 52.200.68.64 (ClassC) |
| 2025-04-29 | 54.211.93.217 (ClassC) |
| 2025-05-09 | 3.227.93.205 (ClassC) |
| 2025-06-30 | 54.87.251.25 (ClassC) |
| 2025-08-10 | 3.221.144.54 (ClassC) |
| 2025-11-03 | 3.208.159.212 (ClassC) |
| 2026-01-03 | 18.232.11.80 (ClassC) |
| Date | Domain | IP |
| login-beta.serff.com | 2024-06-03 | 44.218.53.22 |
| train.serff.com | 2024-12-26 | 3.214.39.54 |
| login.serff.com | 2025-03-07 | 52.200.68.64 |
| services.serff.com | 2024-06-18 | 50.19.215.39 |
| filingaccess.serff.com | 2025-10-13 | 54.161.121.123 |
| www.serff.com | 2024-06-18 | 3.234.12.133 |