| Property | Value |
| Organization | SUMITOMO ELECTRIC INDUSTRIES, LTD. |
| NameServer | ns02.sei.co.jp |
| Created | 1996-10-21 00:00:00 |
| Changed | 2014-10-31 16:04:00 |
| Date | IP Address |
| 2024-11-19 | 202.221.235.179 (ClassC) |
| Date | Domain | IP |
| www1.dcsg.sei.co.jp | 2024-11-14 | 20.212.97.86 |
| websys-us.sei.co.jp | 2024-10-15 | 20.51.110.198 |
| t-websys-us.sei.co.jp | 2023-08-25 | 20.51.110.198 |
| www1.azus.sei.co.jp | 2023-08-25 | 20.51.110.198 |
| rasc2-dev.sei.co.jp | 2024-11-19 | 202.221.235.179 |
| www.sei.co.jp | 2024-11-19 | 133.153.71.81 |