| Date | IP Address |
| 2015-03-13 | 128.177.96.42 (ClassC) |
| 2016-02-16 | 23.218.156.96 (ClassC) |
| 2016-07-03 | 23.218.156.56 (ClassC) |
| 2016-11-06 | 104.101.209.67 (ClassC) |
| 2017-07-10 | 40.136.60.98 (ClassC) |
| 2018-03-05 | 104.98.60.50 (ClassC) |
| 2018-07-29 | 23.79.202.78 (ClassC) |
| 2018-09-28 | 23.67.238.217 (ClassC) |
| 2023-08-25 | 69.192.139.227 (ClassC) |
| 2024-01-12 | 23.203.166.9 (ClassC) |
| 2024-08-09 | 104.96.163.139 (ClassC) |
| 2025-09-05 | 23.41.4.76 (ClassC) |
| 2026-02-19 | 23.41.4.83 (ClassC) |
| Date | Domain | IP |
| campagne-e.oec.gc.ca | 2026-02-15 | 204.104.133.63 |
| www.campagne-e.oec.gc.ca | 2025-09-07 | 204.104.133.63 |
| www.transmettre.oec.gc.ca | 2025-09-06 | 204.104.133.95 |
| actualiser.oec.gc.ca | 2025-09-06 | 204.104.133.121 |
| www.actualiser.oec.gc.ca | 2025-09-06 | 204.104.133.121 |
| employeur.oec.gc.ca | 2025-09-06 | 204.104.133.68 |
| www.employeur.oec.gc.ca | 2025-09-06 | 204.104.133.68 |
| oecdirect.oec.gc.ca | 2025-09-07 | 204.104.133.64 |
| www.oecdirect.oec.gc.ca | 2026-02-15 | 204.104.133.64 |
| www.campagne-e-it.oec.gc.ca | 2025-09-07 | 204.104.133.73 |
| www.transmettre-it.oec.gc.ca | 2025-09-06 | 204.104.133.97 |
| www.oecdirect-it.oec.gc.ca | 2025-09-07 | 204.104.133.74 |
| www.transmettre-st.oec.gc.ca | 2026-02-03 | 204.104.133.99 |
| www.employeur-st.oec.gc.ca | 2025-09-06 | 204.104.133.80 |
| www.oec.gc.ca | 2015-03-13 | 128.177.96.42 |