| Date | IP Address |
| 2024-02-21 | 181.193.34.240 (ClassC) |
| 2024-10-05 | 52.96.164.72 (ClassC) |
| 2024-11-01 | 52.96.165.8 (ClassC) |
| 2024-11-24 | 52.96.223.56 (ClassC) |
| 2024-12-19 | 52.96.166.40 (ClassC) |
| 2024-12-27 | 52.96.121.40 (ClassC) |
| 2025-01-08 | 52.96.121.8 (ClassC) |
| 2025-01-30 | 52.96.166.24 (ClassC) |
| 2025-02-06 | 52.96.113.248 (ClassC) |
| Date | Domain | IP |
| ns3.correos.go.cr | 2025-01-18 | 201.203.145.8 |
| mail.correos.go.cr | 2024-11-24 | 181.193.34.240 |
| restful.correos.go.cr | 2024-02-21 | 201.203.145.8 |
| autodiscover.correos.go.cr | 2024-02-21 | 181.193.34.240 |
| bpguias.correos.go.cr | 2025-01-09 | 181.193.34.232 |
| servicios.correos.go.cr | 2024-11-26 | 181.193.34.233 |
| ccrenvios.correos.go.cr | 2024-02-21 | 181.193.34.234 |