| Date | IP Address |
| 2014-05-02 | 130.207.211.174 (ClassC) |
| 2014-11-17 | 156.40.212.28 (ClassC) |
| 2019-01-21 | 65.153.18.179 (ClassC) |
| 2019-01-25 | 23.43.164.24 (ClassC) |
| 2019-02-03 | 23.35.150.24 (ClassC) |
| 2019-02-06 | 128.177.96.203 (ClassC) |
| 2021-02-20 | 184.86.202.37 (ClassC) |
| 2021-05-14 | 104.78.244.248 (ClassC) |
| 2024-02-21 | 23.198.171.201 (ClassC) |
| 2024-07-02 | 23.222.144.93 (ClassC) |
| 2024-07-29 | 23.6.181.153 (ClassC) |
| 2024-08-08 | 23.205.200.211 (ClassC) |
| 2024-11-13 | 96.6.233.155 (ClassC) |
| 2024-12-02 | 92.123.203.73 (ClassC) |
| 2024-12-24 | 23.196.202.148 (ClassC) |
| 2025-01-01 | 69.192.45.168 (ClassC) |
| 2025-01-13 | 104.90.249.91 (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 | 2024-10-28 | 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 |