| Date | IP Address |
| 2012-08-20 | 85.232.50.66 (ClassC) |
| 2024-06-30 | 52.211.85.12 (ClassC) |
| 2024-11-23 | 35.242.183.249 (ClassC) |
| 2025-01-19 | 35.189.126.202 (ClassC) |
| Date | Domain | IP |
| email.jrf.org.uk | 2024-11-07 | 52.96.121.50 |
| autodiscover.jrf.org.uk | 2024-11-05 | 52.96.184.152 |