| Date | IP Address |
| 2023-08-15 | 104.18.23.66 (ClassC) |
| 2024-11-10 | 104.18.34.152 (ClassC) |
| 2025-03-15 | 172.64.153.104 (ClassC) |
| 2025-04-28 | 104.18.43.146 (ClassC) |
| 2026-02-07 | 172.64.144.110 (ClassC) |
| Date | Domain | IP |
| guidewire-sre.grinnellmutual.com | 2025-10-21 | 3.163.24.12 |
| agentportal.grinnellmutual.com | 2023-08-15 | 3.132.66.108 |
| alert.grinnellmutual.com | 2023-08-15 | 104.18.23.66 |
| my.grinnellmutual.com | 2025-10-22 | 3.175.34.7 |