| Date | IP Address |
| 2022-07-20 | 54.211.28.40 (ClassC) |
| 2025-10-25 | 54.147.125.230 (ClassC) |
| Date | Domain | IP |
| rolling-stock-dev2-auth.onsmartengineering.com | 2024-06-03 | 52.3.63.224 |
| rolling-stock-sandbox2-auth.onsmartengineering.com | 2024-02-21 | 52.71.57.64 |
| rolling-stock-qa-auth.onsmartengineering.com | 2024-06-03 | 52.44.30.204 |
| onex-ember-auth.onsmartengineering.com | 2024-06-10 | 52.6.137.232 |
| rolling-stock.onsmartengineering.com | 2025-10-25 | 54.147.125.230 |
| rolling-stock-sandbox2-ops-portal.onsmartengineering.com | 2024-02-21 | 52.71.57.64 |