| Date | IP Address |
| 2021-07-20 | 54.230.18.7 (ClassC) |
| 2022-06-19 | 108.159.227.59 (ClassC) |
| 2024-06-26 | 99.84.66.107 (ClassC) |
| 2025-02-04 | 52.84.162.59 (ClassC) |
| 2025-04-17 | 204.246.191.26 (ClassC) |
| 2025-05-11 | 3.163.158.126 (ClassC) |
| 2025-06-15 | 99.84.66.84 (ClassC) |
| 2025-09-06 | 99.84.66.2 (ClassC) |
| 2025-10-28 | 3.169.173.71 (ClassC) |
| Date | Domain | IP |
| dev01.tokyo-gas-knowledge-sharing.com | 2024-11-13 | 52.68.255.12 |
| auth.dev01.tokyo-gas-knowledge-sharing.com | 2024-09-04 | 18.161.6.11 |
| api.dev01.tokyo-gas-knowledge-sharing.com | 2024-06-26 | 99.84.66.107 |
| contents.dev01.tokyo-gas-knowledge-sharing.com | 2024-06-30 | 18.161.6.44 |
| stg.tokyo-gas-knowledge-sharing.com | 2024-06-03 | 52.192.213.166 |
| auth.stg.tokyo-gas-knowledge-sharing.com | 2025-01-03 | 52.84.162.33 |
| api.stg.tokyo-gas-knowledge-sharing.com | 2024-07-21 | 99.84.66.100 |
| api.tokyo-gas-knowledge-sharing.com | 2024-09-24 | 18.161.6.76 |
| auth.uat.tokyo-gas-knowledge-sharing.com | 2024-12-07 | 99.86.38.63 |
| api.uat.tokyo-gas-knowledge-sharing.com | 2025-10-28 | 3.169.173.126 |