| Date | IP Address |
| 2016-02-21 | 54.192.89.113 (ClassC) |
| 2017-09-23 | 54.192.2.116 (ClassC) |
| 2017-10-21 | 52.84.11.27 (ClassC) |
| 2017-10-31 | 13.32.150.70 (ClassC) |
| 2017-11-11 | 54.230.14.150 (ClassC) |
| 2017-12-15 | 54.192.2.179 (ClassC) |
| 2018-06-20 | 54.192.129.53 (ClassC) |
| 2018-08-24 | 143.204.214.38 (ClassC) |
| 2026-02-07 | 172.104.157.241 (ClassC) |
| Date | Domain | IP |
| www-static.sirena.org.uk | 2024-08-19 | 3.163.24.67 |
| www.sirena.org.uk | 2026-02-07 | 172.104.157.241 |