| Date | IP Address |
| 2014-01-18 | 107.23.193.11 (ClassC) |
| 2014-01-23 | 107.23.102.71 (ClassC) |
| 2024-03-22 | 52.9.166.110 (ClassC) |
| 2024-05-15 | 50.18.142.31 (ClassC) |
| 2024-07-21 | 13.57.148.141 (ClassC) |
| 2025-05-14 | 13.52.115.166 (ClassC) |
| 2025-05-23 | 54.215.62.21 (ClassC) |
| 2026-01-18 | 52.52.192.191 (ClassC) |
| Date | Domain | IP |
| rfc.zeromq.org | 2013-12-21 | 107.23.193.11 |
| download.zeromq.org | 2025-09-20 | 54.73.53.134 |
| zguide.zeromq.org | 2014-01-06 | 107.23.193.11 |
| api.zeromq.org | 2014-11-08 | 54.165.29.53 |
| czmq.zeromq.org | 2014-04-03 | 107.23.193.11 |
| kr.zeromq.org | 2014-09-05 | 107.23.193.11 |
| www.zeromq.org | 2014-01-18 | 107.23.193.11 |