| Date | IP Address |
| 2021-01-09 | 52.213.169.86 (ClassC) |
| 2024-09-14 | 151.101.21.154 (ClassC) |
| 2025-01-23 | 146.75.41.154 (ClassC) |
| Date | Domain | IP |
| mail10.kcs.co.uk | 2024-08-26 | 146.75.41.154 |
| mail1.kcs.co.uk | 2024-08-10 | 151.101.21.154 |
| mail02.kcs.co.uk | 2024-08-24 | 146.75.41.154 |
| mail12.kcs.co.uk | 2024-09-15 | 151.101.21.154 |
| smtp3.kcs.co.uk | 2024-10-12 | 146.75.41.154 |
| mail7.kcs.co.uk | 2024-09-14 | 151.101.21.154 |
| remote.kcs.co.uk | 2024-08-13 | 146.75.41.154 |
| smtpauth.kcs.co.uk | 2024-09-15 | 146.75.41.154 |
| mail.kcs.co.uk | 2024-05-13 | 104.16.210.86 |
| gw.kcs.co.uk | 2024-09-15 | 146.75.41.154 |
| mailrelay.kcs.co.uk | 2024-05-26 | 151.101.21.154 |