| Date | IP Address |
| 2023-07-23 | 209.190.172.25 (ClassC) |
| 2026-01-08 | 209.190.172.18 (ClassC) |
| Date | Domain | IP |
| stage.npass2.edc.org | 2025-09-25 | 209.190.172.25 |
| group4.edc.org | 2025-09-29 | 209.190.172.25 |
| sptac-ta.edc.org | 2025-10-11 | 20.25.52.139 |
| stage.sptac-ta.edc.org | 2025-09-24 | 20.25.107.146 |
| dev.sptac-ta.edc.org | 2025-09-25 | 20.25.107.146 |
| www.sptac-ta.edc.org | 2025-09-25 | 20.25.52.139 |
| oermacc.edc.org | 2025-09-27 | 209.190.172.25 |
| mathandmusic.edc.org | 2025-09-26 | 209.190.172.25 |
| bjc.edc.org | 2025-12-13 | 209.190.172.18 |
| stage.idd.edc.org | 2025-10-17 | 209.190.172.25 |
| stage.ltd.edc.org | 2025-09-25 | 209.190.172.25 |
| stage.include.edc.org | 2025-09-25 | 209.190.172.25 |
| mathandlanguage.edc.org | 2026-01-08 | 209.190.172.18 |
| psonline.edc.org | 2025-09-24 | 209.190.163.206 |
| emseldermistreatmentresponse.edc.org | 2024-11-24 | 54.144.154.75 |
| www.emseldermistreatmentresponse.edc.org | 2024-11-24 | 54.144.154.75 |
| zerosuicidetraining.edc.org | 2024-11-24 | 34.204.184.163 |
| www.zerosuicidetraining.edc.org | 2024-11-24 | 3.233.125.109 |
| mhomresearch.edc.org | 2025-09-27 | 209.190.172.18 |
| readytolearn.edc.org | 2025-11-21 | 209.190.172.18 |
| possibleworlds.edc.org | 2025-09-21 | 209.190.172.18 |
| www.possibleworlds.edc.org | 2025-09-28 | 209.190.172.18 |
| learn-crystalbridges.edc.org | 2025-09-24 | 209.190.172.18 |
| infectiousdiseases.edc.org | 2025-09-24 | 209.190.172.18 |
| zerosuicidetrainings.edc.org | 2025-10-09 | 50.19.85.29 |
| cos.edc.org | 2025-08-02 | 209.190.172.25 |
| cct.edc.org | 2025-08-19 | 209.190.172.18 |
| www.edc.org | 2024-11-26 | 209.190.172.21 |