| Date | IP Address |
| 2020-05-13 | 52.199.100.225 (ClassC) |
| 2020-09-03 | 52.68.173.203 (ClassC) |
| 2020-09-18 | 54.238.149.86 (ClassC) |
| 2020-09-30 | 52.193.220.251 (ClassC) |
| 2020-11-18 | 54.64.91.143 (ClassC) |
| 2020-11-29 | 13.231.91.41 (ClassC) |
| 2021-01-08 | 13.112.90.195 (ClassC) |
| 2021-04-27 | 52.196.183.211 (ClassC) |
| 2021-05-10 | 13.114.7.163 (ClassC) |
| 2021-09-19 | 176.34.0.177 (ClassC) |
| 2022-05-23 | 52.194.81.152 (ClassC) |
| 2022-07-21 | 54.150.222.144 (ClassC) |
| 2022-07-28 | 52.194.203.180 (ClassC) |
| 2023-06-01 | 13.230.240.42 (ClassC) |
| 2023-10-07 | 54.199.26.47 (ClassC) |
| 2024-01-18 | 13.115.110.103 (ClassC) |
| 2024-07-15 | 54.64.57.211 (ClassC) |
| 2025-10-06 | 52.199.251.155 (ClassC) |
| 2025-10-13 | 52.68.109.203 (ClassC) |
| 2025-11-04 | 43.206.244.165 (ClassC) |
| 2025-12-12 | 52.68.99.131 (ClassC) |
| 2026-01-30 | 35.79.189.67 (ClassC) |
| Date | Domain | IP |
| www.utcjapan.jp | 2025-10-23 | 43.206.244.165 |