| Date | IP Address |
| 2016-01-13 | 52.20.204.232 (ClassC) |
| 2016-07-15 | 52.22.228.97 (ClassC) |
| 2017-03-04 | 52.20.194.176 (ClassC) |
| 2025-08-31 | 104.21.19.241 (ClassC) |
| 2026-02-05 | 172.67.190.127 (ClassC) |
| Date | Domain | IP |
| cdn.blockspring.com | 2015-03-14 | 54.192.91.230 |
| sender.blockspring.com | 2025-08-31 | 104.21.19.241 |
| bleroku.blockspring.com | 2015-02-18 | 54.230.88.32 |