| Date | IP Address |
| 2023-08-25 | 104.86.254.184 (ClassC) |
| 2024-04-19 | 104.100.69.12 (ClassC) |
| 2025-07-13 | 23.41.4.77 (ClassC) |
| 2025-09-21 | 23.46.17.186 (ClassC) |
| 2026-02-20 | 23.41.4.86 (ClassC) |
| Date | Domain | IP |
| trainingc.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| poc.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| trainingd.edit.stayexempt.irs.gov | 2023-08-25 | 23.5.254.84 |
| prod.edit.stayexempt.irs.gov | 2023-08-25 | 23.5.254.84 |
| pete.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| eite.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| bat.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| sit.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| dmesit.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| pmaint.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| dev.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| dmedev.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| www.pmaint.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| www.stayexempt.irs.gov | 2015-03-11 | 173.205.10.17 |