| Date | IP Address |
| 2025-02-27 | 3.163.24.87 (ClassC) |
| 2025-04-28 | 18.161.6.126 (ClassC) |
| 2025-05-05 | 99.84.66.106 (ClassC) |
| 2025-05-10 | 18.161.6.12 (ClassC) |
| 2025-05-16 | 18.161.6.75 (ClassC) |
| 2025-11-13 | 3.169.173.66 (ClassC) |
| 2026-01-30 | 18.161.6.85 (ClassC) |
| Date | Domain | IP |
| remuneration.prod.hc-pl.ipf.cloud | 2025-02-27 | 3.165.160.22 |
| remuneration.test.hc-pl.ipf.cloud | 2025-02-27 | 99.84.66.70 |
| remuneration-uat.test.hc-pl.ipf.cloud | 2025-02-27 | 3.163.158.64 |
| info-uat.test.hc-pl.ipf.cloud | 2025-02-27 | 3.163.24.77 |
| digitalsigner-uat.test.hc-pl.ipf.cloud | 2025-02-27 | 18.238.238.3 |
| rrs-uat.test.hc-pl.ipf.cloud | 2025-06-21 | 3.163.19.26 |
| formularz-informacyjny-uat.test.hc-pl.ipf.cloud | 2025-02-27 | 18.172.170.42 |
| info-sit.test.hc-pl.ipf.cloud | 2025-02-27 | 3.163.24.87 |