| Date | IP Address |
| 2024-12-26 | 104.18.39.118 (ClassC) |
| 2026-01-04 | 172.64.148.138 (ClassC) |
| Date | Domain | IP |
| ftp2.e-invoice.com | 2025-06-30 | 20.106.232.171 |
| mmcpassuat2.e-invoice.com | 2025-05-02 | 172.64.148.138 |
| ftp3.e-invoice.com | 2024-10-21 | 172.174.156.204 |
| ftp-prod.e-invoice.com | 2025-08-05 | 20.106.232.171 |
| vanguard.e-invoice.com | 2024-12-26 | 104.18.39.118 |
| ftp-stage.e-invoice.com | 2025-08-04 | 172.174.156.204 |
| ihg.e-invoice.com | 2025-03-04 | 104.18.39.118 |
| sso.ihg.e-invoice.com | 2025-08-06 | 172.64.148.138 |
| sso.manulifeuat.e-invoice.com | 2025-02-17 | 104.18.39.118 |
| ihguat.e-invoice.com | 2025-05-26 | 172.64.148.138 |
| sso.ihguat.e-invoice.com | 2025-03-09 | 172.64.148.138 |