| Date | IP Address |
| 2021-06-23 | 52.219.136.215 (ClassC) |
| 2023-07-28 | 52.219.199.7 (ClassC) |
| 2024-09-22 | 52.219.152.167 (ClassC) |
| 2024-11-13 | 52.219.152.11 (ClassC) |
| 2024-11-14 | 52.219.199.35 (ClassC) |
| 2024-11-24 | 52.219.199.43 (ClassC) |
| 2025-01-10 | 52.219.172.107 (ClassC) |
| 2025-01-19 | 3.5.156.46 (ClassC) |
| 2025-01-24 | 3.5.158.68 (ClassC) |
| 2025-01-28 | 3.5.156.117 (ClassC) |
| 2025-02-26 | 52.219.152.83 (ClassC) |
| 2025-03-10 | 3.5.154.182 (ClassC) |
| 2025-04-29 | 3.5.156.138 (ClassC) |
| 2025-04-29 | 3.5.155.129 (ClassC) |
| 2025-04-30 | 52.219.151.87 (ClassC) |
| 2025-05-14 | 3.5.156.122 (ClassC) |
| 2025-05-14 | 3.5.156.235 (ClassC) |
| 2025-05-25 | 52.219.200.31 (ClassC) |
| 2025-07-03 | 3.5.154.131 (ClassC) |
| 2025-08-08 | 3.5.155.147 (ClassC) |
| 2025-09-30 | 3.5.158.3 (ClassC) |
| 2025-10-25 | 3.5.158.27 (ClassC) |
| 2025-10-25 | 3.5.156.185 (ClassC) |
| 2025-11-26 | 3.5.157.80 (ClassC) |
| 2025-12-01 | 52.219.199.127 (ClassC) |
| 2026-02-28 | 52.219.199.119 (ClassC) |
| Date | Domain | IP |
| zaikoq-reservation-demo2.dev-reszaiko.ikyu.jp | 2025-08-22 | 35.190.68.110 |
| zaikoq-reservation.dev-reszaiko.ikyu.jp | 2025-09-20 | 35.186.225.39 |
| member.gcp.ikyu.jp | 2025-08-27 | 34.8.137.229 |
| www.ikyu.jp | 2024-11-24 | 52.219.162.155 |