| Date | Domain | IP |
| smtpxway2.ihs.gov | 2025-05-05 | 198.45.9.6 |
| telehealth.ihs.gov | 2024-11-25 | 44.238.89.169 |
| mail.ihs.gov | 2014-05-29 | 198.45.9.15 |
| wireless.ihs.gov | 2025-06-02 | 192.0.2.2 |
| telehealthtest.ihs.gov | 2024-04-13 | 35.172.125.181 |
| www.ihs.gov | 2025-05-24 | 198.45.0.67 |