| Date | IP Address |
| 2017-05-25 | 52.84.56.50 (ClassC) |
| 2017-05-31 | 52.84.56.187 (ClassC) |
| 2017-09-26 | 52.84.11.72 (ClassC) |
| 2017-12-12 | 205.251.253.112 (ClassC) |
| 2017-12-27 | 13.33.252.53 (ClassC) |
| 2018-04-05 | 52.84.143.239 (ClassC) |
| 2018-09-21 | 52.84.68.103 (ClassC) |
| 2018-11-16 | 13.33.251.112 (ClassC) |
| 2018-11-16 | 13.33.251.30 (ClassC) |
| 2018-11-16 | 13.33.251.96 (ClassC) |
| 2018-12-24 | 52.84.141.54 (ClassC) |
| 2019-04-05 | 52.222.218.59 (ClassC) |
| 2019-04-16 | 52.222.218.36 (ClassC) |
| 2019-05-13 | 52.84.134.250 (ClassC) |
| 2019-05-13 | 52.84.134.24 (ClassC) |
| 2019-12-13 | 13.226.189.20 (ClassC) |
| 2019-12-13 | 13.226.189.72 (ClassC) |
| 2019-12-13 | 13.226.189.99 (ClassC) |
| 2025-08-26 | 3.115.204.88 (ClassC) |
| Date | Domain | IP |
| stg-portal.nihon-kotsu.co.jp | 2024-11-24 | 3.114.8.36 |
| nportal.nihon-kotsu.co.jp | 2024-06-03 | 18.179.243.235 |
| www-origin.nihon-kotsu.co.jp | 2025-06-25 | 3.115.204.88 |
| www.nihon-kotsu.co.jp | 2025-08-26 | 3.115.204.88 |