| Date | IP Address |
| 2024-11-24 | 174.129.52.61 (ClassC) |
| 2024-12-30 | 52.55.250.128 (ClassC) |
| 2025-01-13 | 34.199.218.106 (ClassC) |
| Date | Domain | IP |
| mail.illinoiscomptroller.gov | 2024-12-22 | 52.96.91.34 |
| enewsletter.illinoiscomptroller.gov | 2024-11-24 | 174.129.52.61 |
| localgovernment.illinoiscomptroller.gov | 2024-11-24 | 174.129.52.61 |
| www.illinoiscomptroller.gov | 2024-12-30 | 12.2.161.14 |