| Date | IP Address |
| 2021-09-07 | 34.240.25.99 (ClassC) |
| 2022-08-08 | 54.74.179.246 (ClassC) |
| 2025-10-25 | 52.17.85.30 (ClassC) |
| 2025-12-16 | 52.214.222.233 (ClassC) |
| Date | Domain | IP |
| eu-central-api.ws.hookrelay.dev | 2024-06-09 | 18.185.65.234 |
| eu-west-api.ws.hookrelay.dev | 2025-10-25 | 52.17.85.30 |