| Date | IP Address |
| 2022-12-09 | 34.225.191.134 (ClassC) |
| 2024-09-13 | 107.21.10.200 (ClassC) |
| 2025-01-21 | 54.80.136.120 (ClassC) |
| Date | Domain | IP |
| portal.er2.com | 2024-09-13 | 107.21.10.200 |
| demo.portal.er2.com | 2024-09-21 | 18.208.38.251 |
| master.production.er2.com | 2024-06-03 | 18.235.150.196 |
| uploads.er2.com | 2023-10-31 | 52.92.165.178 |
| www.er2.com | 2023-11-01 | 44.217.108.178 |