| Date | IP Address |
| 2023-11-02 | 20.50.222.94 (ClassC) |
| 2025-01-13 | 20.54.176.184 (ClassC) |
| Date | Domain | IP |
| einvoice.s1ecos.gr | 2024-07-29 | 20.50.2.13 |
| links.einvoice.s1ecos.gr | 2024-08-09 | 3.123.216.247 |
| einvoice.coreapi.s1ecos.gr | 2024-10-05 | 20.54.220.227 |
| einvoice-portal.s1ecos.gr | 2024-12-27 | 20.50.2.13 |
| www.s1ecos.gr | 2023-11-02 | 20.50.222.94 |