| Date | IP Address |
| 2023-08-10 | 3.19.169.102 (ClassC) |
| 2023-09-24 | 3.141.234.51 (ClassC) |
| 2023-12-24 | 3.139.254.32 (ClassC) |
| 2024-01-28 | 18.222.7.104 (ClassC) |
| 2024-03-30 | 3.136.225.128 (ClassC) |
| 2024-04-22 | 3.143.126.103 (ClassC) |
| 2024-05-12 | 3.132.65.30 (ClassC) |
| 2024-06-11 | 3.13.157.210 (ClassC) |
| 2024-06-24 | 3.133.192.49 (ClassC) |
| 2024-07-12 | 3.23.21.40 (ClassC) |
| 2024-07-20 | 18.216.238.109 (ClassC) |
| 2024-08-02 | 18.221.147.166 (ClassC) |
| 2024-08-25 | 3.19.4.205 (ClassC) |
| 2024-09-06 | 18.221.231.127 (ClassC) |
| 2024-12-26 | 54.157.108.158 (ClassC) |
| 2025-04-30 | 98.83.184.133 (ClassC) |
| Date | Domain | IP |
| www.hmrc-taxservice.com | 2024-07-20 | 18.216.238.109 |