| Date | IP Address |
| 2019-08-23 | 104.91.229.230 (ClassC) |
| 2020-06-29 | 96.17.11.90 (ClassC) |
| 2020-09-18 | 184.51.3.26 (ClassC) |
| 2021-04-16 | 92.122.218.240 (ClassC) |
| 2024-07-25 | 184.28.198.97 (ClassC) |
| 2024-09-15 | 23.72.249.212 (ClassC) |
| 2024-12-27 | 95.100.98.33 (ClassC) |
| Date | Domain | IP |
| staging.111.nhs.uk | 2023-08-26 | 92.122.92.43 |
| www.111.nhs.uk | 2024-07-25 | 184.28.198.97 |