| Date | IP Address |
| 2026-01-28 | 170.52.16.139 (ClassC) |
| Date | Domain | IP |
| owa.quadrantsoftware.com | 2025-05-15 | 18.211.144.80 |
| mail.quadrantsoftware.com | 2025-06-09 | 18.211.144.80 |
| vpn.quadrantsoftware.com | 2024-12-23 | 50.224.189.166 |
| ftp.quadrantsoftware.com | 2024-12-18 | 66.147.244.229 |
| autodiscover.quadrantsoftware.com | 2024-11-12 | 52.96.242.8 |
| downloads.quadrantsoftware.com | 2025-05-12 | 18.211.144.80 |
| uploads.quadrantsoftware.com | 2025-04-29 | 18.211.144.80 |
| securitykeys.quadrantsoftware.com | 2026-01-28 | 170.52.16.139 |
| www.securitykeys.quadrantsoftware.com | 2026-01-28 | 170.52.16.139 |
| www.quadrantsoftware.com | 2025-07-19 | 18.211.144.80 |