| Date | IP Address |
| 2020-02-05 | 13.249.79.88 (ClassC) |
| 2021-01-04 | 143.204.26.19 (ClassC) |
| 2021-01-04 | 143.204.26.52 (ClassC) |
| 2021-01-04 | 143.204.26.106 (ClassC) |
| 2024-12-21 | 108.138.94.16 (ClassC) |
| 2025-06-13 | 108.138.94.110 (ClassC) |
| 2025-07-13 | 18.161.6.45 (ClassC) |
| 2025-09-12 | 18.161.6.78 (ClassC) |
| 2025-10-27 | 18.161.6.94 (ClassC) |
| 2025-11-20 | 18.161.6.84 (ClassC) |
| Date | Domain | IP |
| stage.cspa.callanworks.co.uk | 2024-12-21 | 108.138.94.16 |
| stage.callanworks.co.uk | 2025-07-13 | 35.156.28.102 |
| api.booking.stage.callanworks.co.uk | 2025-05-30 | 18.185.150.197 |
| api.lessons.stage.callanworks.co.uk | 2025-05-27 | 3.123.174.188 |
| video.callanworks.co.uk | 2025-06-07 | 99.84.66.30 |
| trans.callanworks.co.uk | 2025-08-13 | 18.157.213.133 |
| transactions.callanworks.co.uk | 2025-05-27 | 3.74.135.114 |