| Date | IP Address |
| 2013-05-17 | 204.71.142.140 (ClassC) |
| 2019-12-10 | 13.82.208.111 (ClassC) |
| 2020-06-11 | 40.77.100.10 (ClassC) |
| 2025-08-06 | 40.83.38.50 (ClassC) |
| Date | Domain | IP |
| send.sfn.org | 2024-06-08 | 23.23.29.125 |
| static-send.sfn.org | 2024-06-11 | 3.93.108.233 |
| neuronline.sfn.org | 2025-06-16 | 40.83.38.50 |
| neurojobs.sfn.org | 2024-09-13 | 99.84.66.33 |
| admin-neurojobs.sfn.org | 2024-02-28 | 99.84.66.51 |
| employers-neurojobs.sfn.org | 2025-01-17 | 3.163.189.116 |
| www.sfn.org | 2025-06-28 | 40.83.38.50 |