| Date | IP Address |
| 2024-06-09 | 54.93.158.186 (ClassC) |
| 2024-06-16 | 18.196.133.250 (ClassC) |
| 2024-09-11 | 35.157.242.214 (ClassC) |
| 2024-10-02 | 18.195.32.39 (ClassC) |
| 2024-12-06 | 18.185.237.0 (ClassC) |
| 2025-02-14 | 18.198.96.61 (ClassC) |
| 2025-04-03 | 18.193.194.10 (ClassC) |
| Date | Domain | IP |
| portal.acc.gresb.com | 2024-08-20 | 3.70.80.12 |
| api.gresb.com | 2024-06-09 | 54.93.158.186 |
| portal.gresb.com | 2024-07-22 | 18.185.181.217 |
| demo-portal.gresb.com | 2024-06-09 | 18.196.133.250 |
| documents.gresb.com | 2025-01-01 | 3.163.24.123 |
| events.gresb.com | 2024-07-22 | 52.29.138.163 |
| www.gresb.com | 2025-01-23 | 141.193.213.21 |