| Date | IP Address |
| 2025-06-02 | 3.130.175.10 (ClassC) |
| 2025-11-02 | 3.133.61.98 (ClassC) |
| 2026-02-06 | 18.189.9.80 (ClassC) |
| Date | Domain | IP |
| lihtc.huduser.gov | 2025-06-25 | 3.23.208.101 |
| webstore.huduser.gov | 2025-10-24 | 3.133.184.94 |
| socds.huduser.gov | 2025-09-09 | 18.220.129.51 |
| archives.huduser.gov | 2025-10-24 | 3.132.244.114 |
| apps.huduser.gov | 2025-11-02 | 3.133.61.98 |
| qct.huduser.gov | 2025-10-16 | 3.143.137.113 |
| www.huduser.gov | 2023-11-01 | 18.216.224.1 |