| Date | IP Address |
| 2016-04-14 | 209.133.57.107 (ClassC) |
| 2017-12-22 | 65.152.202.51 (ClassC) |
| 2018-03-16 | 23.3.96.81 (ClassC) |
| 2018-08-16 | 23.213.133.50 (ClassC) |
| 2020-04-27 | 184.25.56.107 (ClassC) |
| 2020-04-27 | 184.25.56.147 (ClassC) |
| 2022-02-04 | 23.32.45.82 (ClassC) |
| 2024-08-17 | 23.44.205.56 (ClassC) |
| 2024-09-10 | 23.213.175.171 (ClassC) |
| 2024-11-05 | 23.219.78.80 (ClassC) |
| 2024-12-21 | 23.46.228.142 (ClassC) |
| 2025-02-21 | 23.33.85.136 (ClassC) |
| 2025-04-12 | 23.216.145.149 (ClassC) |
| 2025-04-25 | 23.55.168.65 (ClassC) |
| 2025-06-22 | 23.216.147.39 (ClassC) |
| 2025-07-03 | 23.40.41.39 (ClassC) |
| 2025-11-07 | 23.46.228.100 (ClassC) |
| 2025-12-25 | 23.48.99.150 (ClassC) |
| 2026-02-17 | 23.213.34.163 (ClassC) |
| Date | Domain | IP |
| image.email-nrinstitute.org | 2024-08-18 | 23.219.78.201 |
| click.email-nrinstitute.org | 2024-08-17 | 23.44.205.56 |