| Date | IP Address |
| 2021-06-22 | 13.226.178.48 (ClassC) |
| 2021-07-06 | 13.225.206.122 (ClassC) |
| 2021-07-06 | 13.225.206.22 (ClassC) |
| 2021-07-27 | 99.84.64.53 (ClassC) |
| 2021-08-01 | 13.249.126.95 (ClassC) |
| 2021-08-01 | 13.249.126.124 (ClassC) |
| 2024-08-28 | 99.86.38.101 (ClassC) |
| 2024-09-20 | 99.86.38.27 (ClassC) |
| 2025-06-18 | 18.161.6.51 (ClassC) |
| 2025-06-26 | 18.161.6.126 (ClassC) |
| 2025-07-31 | 18.161.6.65 (ClassC) |
| Date | Domain | IP |
| api.auth2.chunichi.co.jp | 2025-05-27 | 52.199.208.250 |
| static.chunichi.co.jp | 2023-12-16 | 13.224.14.117 |
| stg-static.chunichi.co.jp | 2021-07-27 | 99.84.64.53 |
| plus.chunichi.co.jp | 2024-02-22 | 35.79.163.165 |
| www.chunichi.co.jp | 2023-11-01 | 3.112.153.98 |