| Date | IP Address |
| 2014-01-08 | 107.23.102.71 (ClassC) |
| 2014-02-12 | 107.23.193.11 (ClassC) |
| 2014-11-06 | 54.165.148.181 (ClassC) |
| 2014-11-08 | 54.165.29.53 (ClassC) |
| 2016-05-11 | 52.90.174.192 (ClassC) |
| 2016-09-07 | 54.175.208.116 (ClassC) |
| 2024-11-19 | 107.20.139.170 (ClassC) |
| 2025-01-21 | 107.20.139.176 (ClassC) |
| Date | Domain | IP |
| rfc.zeromq.org | 2013-12-21 | 107.23.193.11 |
| download.zeromq.org | 2024-06-30 | 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 |