| Date | IP Address |
| 2025-01-16 | 216.237.201.143 (ClassC) |
| Date | Domain | IP |
| employee.cornerstonehealthcare.com | 2024-11-11 | 216.237.201.140 |
| masterschedule.cornerstonehealthcare.com | 2025-01-16 | 216.237.201.143 |
| fileshare.cornerstonehealthcare.com | 2024-11-13 | 216.237.201.135 |
| auth.cornerstonehealthcare.com | 2024-11-13 | 216.237.201.144 |
| ehrportal.cornerstonehealthcare.com | 2024-11-14 | 216.237.201.118 |
| autodiscover.cornerstonehealthcare.com | 2024-11-12 | 216.237.201.122 |
| ironport.cornerstonehealthcare.com | 2024-11-14 | 216.237.201.114 |
| vblast.cornerstonehealthcare.com | 2025-01-03 | 216.237.201.134 |