| Date | IP Address |
| 2020-11-21 | 23.194.174.220 (ClassC) |
| 2020-12-06 | 23.222.200.68 (ClassC) |
| 2023-08-25 | 23.196.196.228 (ClassC) |
| 2025-04-21 | 23.196.156.247 (ClassC) |
| 2025-05-02 | 2.19.135.208 (ClassC) |
| 2025-09-15 | 23.37.216.95 (ClassC) |
| 2026-01-22 | 23.38.238.174 (ClassC) |
| 2026-02-21 | 23.198.150.21 (ClassC) |
| Date | Domain | IP |
| staging.niem.gov | 2023-08-25 | 104.108.95.151 |
| edit-staging.niem.gov | 2023-08-25 | 104.108.95.151 |
| tools.niem.gov | 2025-09-14 | 130.207.211.174 |
| edit.niem.gov | 2023-08-25 | 23.196.202.110 |
| testint.niem.gov | 2023-08-25 | 104.108.95.151 |
| edit-testint.niem.gov | 2023-08-25 | 104.108.95.151 |
| preview.niem.gov | 2023-08-25 | 23.37.214.143 |
| edit-preview.niem.gov | 2023-08-25 | 23.196.196.228 |
| www.niem.gov | 2023-08-25 | 23.196.119.128 |