| Date | IP Address |
| 2020-04-28 | 13.225.221.107 (ClassC) |
| 2020-04-28 | 13.225.221.3 (ClassC) |
| 2020-04-28 | 13.225.221.51 (ClassC) |
| 2020-04-28 | 13.225.221.89 (ClassC) |
| 2020-06-12 | 99.84.174.21 (ClassC) |
| 2020-06-12 | 99.84.174.25 (ClassC) |
| 2020-06-12 | 99.84.174.102 (ClassC) |
| 2020-07-13 | 13.249.135.54 (ClassC) |
| 2020-07-13 | 13.249.135.51 (ClassC) |
| 2020-07-30 | 99.84.170.112 (ClassC) |
| 2020-07-30 | 99.84.170.25 (ClassC) |
| 2020-07-30 | 99.84.170.32 (ClassC) |
| 2020-07-30 | 99.84.170.33 (ClassC) |
| 2020-11-29 | 52.84.145.109 (ClassC) |
| 2020-11-29 | 52.84.145.126 (ClassC) |
| 2020-11-29 | 52.84.145.6 (ClassC) |
| 2020-11-29 | 52.84.145.93 (ClassC) |
| 2021-01-08 | 13.225.38.8 (ClassC) |
| 2021-02-03 | 13.227.41.128 (ClassC) |
| 2021-02-03 | 13.227.41.129 (ClassC) |
| 2021-02-24 | 13.225.31.52 (ClassC) |
| 2021-02-24 | 52.84.127.48 (ClassC) |
| 2021-02-24 | 52.84.127.85 (ClassC) |
| 2024-08-16 | 220.101.33.139 (ClassC) |
| 2026-01-17 | 13.91.126.44 (ClassC) |
| Date | Domain | IP |
| trust-qa.k2.com | 2024-03-10 | 138.91.244.106 |
| mail.k2.com | 2025-05-16 | 63.214.131.109 |
| cdn.k2.com | 2024-08-20 | 99.84.71.160 |
| help.k2.com | 2025-11-25 | 13.91.126.44 |
| trust.k2.com | 2024-04-10 | 40.78.25.11 |
| trust-dev.k2.com | 2025-04-24 | 102.133.250.160 |
| www.k2.com | 2026-01-14 | 13.91.126.44 |
| community.k2.com | 2024-08-16 | 220.101.33.139 |