| Date | IP Address |
| 2014-10-11 | 54.217.239.43 (ClassC) |
| 2016-06-15 | 54.192.117.14 (ClassC) |
| 2016-07-19 | 54.230.6.96 (ClassC) |
| 2016-09-07 | 54.192.89.159 (ClassC) |
| 2016-09-24 | 52.84.56.130 (ClassC) |
| 2016-11-06 | 52.84.212.81 (ClassC) |
| 2018-07-19 | 45.60.63.3 (ClassC) |
| 2018-08-23 | 204.237.173.163 (ClassC) |
| 2020-03-11 | 23.42.158.88 (ClassC) |
| 2022-02-04 | 23.219.1.24 (ClassC) |
| 2023-05-31 | 23.193.200.109 (ClassC) |
| 2024-03-30 | 23.41.4.78 (ClassC) |
| 2024-05-03 | 23.194.127.22 (ClassC) |
| 2024-09-19 | 23.41.4.86 (ClassC) |
| 2024-12-09 | 104.18.35.191 (ClassC) |
| 2026-02-01 | 104.18.27.107 (ClassC) |
| 2026-02-09 | 104.18.26.107 (ClassC) |
| Date | Domain | IP |
| pensions.pennon-group.co.uk | 2025-12-24 | 194.72.48.167 |
| annualreport.pennon-group.co.uk | 2024-10-21 | 23.41.4.91 |
| www.pennon-group.co.uk | 2024-03-30 | 23.41.4.78 |