| Date | IP Address |
| 2021-02-28 | 210.2.86.73 (ClassC) |
| 2025-11-22 | 120.72.98.129 (ClassC) |
| Date | Domain | IP |
| mail1.sonchongchay.com | 2025-07-01 | 120.72.98.129 |
| relay2.sonchongchay.com | 2025-08-19 | 120.72.98.129 |
| zimbra.sonchongchay.com | 2025-05-25 | 120.72.98.129 |
| exchange.sonchongchay.com | 2025-08-01 | 120.72.98.129 |
| mail.sonchongchay.com | 2025-08-06 | 120.72.98.129 |
| spam.sonchongchay.com | 2025-08-19 | 120.72.98.129 |
| smtpseguro.sonchongchay.com | 2025-08-12 | 120.72.98.129 |
| postmaster.sonchongchay.com | 2025-09-12 | 120.72.98.129 |
| mailserver.sonchongchay.com | 2025-05-23 | 120.72.98.129 |
| ns.sonchongchay.com | 2025-11-21 | 120.72.98.129 |
| mxs.sonchongchay.com | 2025-08-21 | 120.72.98.129 |
| srv.sonchongchay.com | 2025-11-22 | 120.72.98.129 |
| www.sonchongchay.com | 2025-08-30 | 120.72.98.129 |