| Date | IP Address |
| 2017-07-11 | 52.84.3.22 (ClassC) |
| 2017-12-31 | 52.222.220.210 (ClassC) |
| 2019-06-10 | 52.84.134.207 (ClassC) |
| 2020-09-23 | 54.192.86.119 (ClassC) |
| 2021-02-11 | 13.225.31.95 (ClassC) |
| 2025-06-20 | 54.76.84.221 (ClassC) |
| 2025-09-15 | 54.75.176.217 (ClassC) |
| 2026-01-08 | 23.41.4.83 (ClassC) |
| 2026-01-16 | 23.216.147.144 (ClassC) |
| Date | Domain | IP |
| ae.nihonkohden.com | 2025-08-31 | 54.76.84.221 |
| sg.nihonkohden.com | 2025-06-20 | 54.76.84.221 |
| in.nihonkohden.com | 2023-07-19 | 54.155.160.119 |
| br.nihonkohden.com | 2025-08-15 | 54.76.84.221 |
| kr.nihonkohden.com | 2025-08-05 | 54.76.84.221 |
| eu.nihonkohden.com | 2024-08-08 | 54.75.176.217 |
| www.nihonkohden.com | 2024-07-16 | 108.156.201.61 |
| mx.nihonkohden.com | 2025-08-28 | 54.76.84.221 |