| Date | IP Address |
| 2018-08-18 | 143.204.158.49 (ClassC) |
| 2018-08-18 | 143.204.158.7 (ClassC) |
| 2018-10-25 | 13.33.251.70 (ClassC) |
| 2018-11-14 | 52.84.94.2 (ClassC) |
| 2018-11-14 | 52.84.94.225 (ClassC) |
| 2018-11-14 | 52.84.94.118 (ClassC) |
| 2018-11-14 | 52.84.94.161 (ClassC) |
| 2019-01-17 | 52.84.146.195 (ClassC) |
| 2019-03-09 | 54.230.90.55 (ClassC) |
| 2019-03-09 | 54.230.90.62 (ClassC) |
| 2019-03-13 | 143.204.29.77 (ClassC) |
| 2019-03-31 | 52.222.218.138 (ClassC) |
| 2019-03-31 | 52.222.218.158 (ClassC) |
| 2019-03-31 | 52.222.218.237 (ClassC) |
| 2019-04-07 | 52.84.216.62 (ClassC) |
| 2019-04-07 | 52.84.216.66 (ClassC) |
| 2019-04-15 | 99.84.127.34 (ClassC) |
| 2019-04-15 | 99.84.127.65 (ClassC) |
| 2019-05-22 | 52.84.134.61 (ClassC) |
| 2019-08-13 | 13.225.224.119 (ClassC) |
| 2019-08-13 | 13.225.224.17 (ClassC) |
| 2019-08-13 | 13.225.224.76 (ClassC) |
| 2020-08-10 | 52.222.174.96 (ClassC) |
| 2025-04-15 | 99.83.190.102 (ClassC) |
| 2025-09-07 | 75.2.70.75 (ClassC) |
| 2026-01-18 | 198.202.211.1 (ClassC) |
| Date | Domain | IP |
| hl.tandem.co.uk | 2025-10-08 | 18.132.83.96 |
| apis.tandem.co.uk | 2024-11-13 | 3.163.24.5 |
| www.tandem.co.uk | 2023-11-01 | 44.227.170.101 |
| apply.tandem.co.uk | 2025-05-25 | 108.128.156.240 |