| Date | IP Address |
| 2020-03-13 | 23.65.228.214 (ClassC) |
| 2023-08-25 | 104.97.45.116 (ClassC) |
| 2024-07-23 | 104.71.212.174 (ClassC) |
| 2024-09-19 | 23.223.220.30 (ClassC) |
| 2025-09-02 | 104.92.251.220 (ClassC) |
| 2025-09-19 | 23.213.23.204 (ClassC) |
| 2026-01-27 | 23.196.195.52 (ClassC) |
| Date | Domain | IP |
| online.nlcu.com | 2025-09-20 | 208.69.252.232 |
| auth.nlcu.com | 2025-11-03 | 3.169.173.106 |
| image.email.nlcu.com | 2023-08-25 | 104.97.45.116 |
| click.email.nlcu.com | 2026-01-11 | 13.111.18.12 |
| 2svsettings.nlcu.com | 2024-11-16 | 99.84.66.38 |
| www.nlcu.com | 2024-11-16 | 18.161.6.46 |