| Date | IP Address |
| 2015-02-06 | 104.28.30.20 (ClassC) |
| 2015-02-09 | 104.28.31.20 (ClassC) |
| 2019-11-15 | 104.24.96.35 (ClassC) |
| 2019-11-15 | 104.24.97.35 (ClassC) |
| 2020-05-29 | 172.67.139.2 (ClassC) |
| 2020-08-08 | 104.27.153.79 (ClassC) |
| 2020-08-08 | 104.27.152.79 (ClassC) |
| 2021-01-22 | 104.21.74.199 (ClassC) |
| 2025-05-23 | 172.67.206.56 (ClassC) |
| Date | Domain | IP |
| www.sigmoid.com | 2015-02-09 | 104.28.31.20 |