| Property | Value |
| Name | Koji Izumi |
| Organization | IZUMI IIN |
| pu4k-izm@asahi-net.or.jp | |
| Address | 2-14-16 Akebonocho |
| Zip Code | 190-0012 |
| City | Tachikawa-shi |
| State | Tokyo |
| Country | JP |
| Phone | +81.425222233 |
| NameServer | ns-1943.awsdns-50.co.uk |
| Created | 2005-11-09 04:35:58 |
| Changed | 2020-10-25 00:17:25 |
| Registrar | GMO Internet, Inc. d |
| Date | IP Address |
| 2016-01-11 | 54.238.144.145 (ClassC) |
| 2016-01-14 | 54.250.185.74 (ClassC) |
| 2016-12-20 | 52.198.134.166 (ClassC) |
| 2017-06-30 | 54.64.130.121 (ClassC) |
| 2018-06-11 | 52.198.168.97 (ClassC) |
| 2018-06-11 | 52.197.176.8 (ClassC) |
| 2019-10-18 | 13.35.99.118 (ClassC) |
| 2019-10-18 | 13.35.99.40 (ClassC) |
| 2019-10-18 | 13.35.99.42 (ClassC) |
| 2019-11-23 | 13.33.255.117 (ClassC) |
| 2019-11-23 | 13.33.255.121 (ClassC) |
| 2024-06-26 | 18.161.6.64 (ClassC) |
| 2024-08-19 | 13.224.14.129 (ClassC) |
| 2024-12-16 | 18.161.6.3 (ClassC) |
| 2025-01-08 | 13.224.14.100 (ClassC) |
| 2025-04-02 | 18.161.6.15 (ClassC) |
| 2025-04-14 | 18.161.6.125 (ClassC) |
| 2025-12-11 | 3.175.34.86 (ClassC) |
| 2026-02-19 | 3.175.34.107 (ClassC) |