| Date | IP Address |
| 2019-03-26 | 52.209.129.134 (ClassC) |
| 2025-11-23 | 51.145.55.22 (ClassC) |
| Date | Domain | IP |
| beta.greatnorthernrail.com | 2025-01-12 | 51.141.103.79 |
| static.greatnorthernrail.com | 2023-08-26 | 104.100.75.94 |
| delayrepay-ie.greatnorthernrail.com | 2023-12-19 | 18.132.117.40 |
| widgets-staging.greatnorthernrail.com | 2024-05-30 | 3.9.79.139 |
| www.staging.greatnorthernrail.com | 2025-01-14 | 104.96.203.56 |
| api.greatnorthernrail.com | 2024-08-06 | 52.56.200.4 |
| widgets.greatnorthernrail.com | 2023-12-19 | 3.10.72.241 |
| tickets.greatnorthernrail.com | 2024-08-30 | 3.11.252.197 |
| mta-sts.greatnorthernrail.com | 2025-09-06 | 20.90.134.14 |
| ticket.greatnorthernrail.com | 2023-12-19 | 3.10.137.190 |
| www.greatnorthernrail.com | 2023-08-26 | 104.100.75.94 |
| delayrepay.greatnorthernrail.com | 2023-12-19 | 3.10.72.241 |
| myjourney.greatnorthernrail.com | 2025-11-23 | 51.145.55.22 |