| Date | IP Address |
| 2024-02-17 | 18.155.1.84 (ClassC) |
| 2024-05-04 | 18.239.225.56 (ClassC) |
| 2025-11-26 | 3.163.24.10 (ClassC) |
| 2026-01-18 | 3.163.24.120 (ClassC) |
| Date | Domain | IP |
| a.slack-edge-gov.com | 2023-08-15 | 3.163.24.88 |
| ca.slack-edge-gov.com | 2023-08-16 | 18.252.167.214 |
| b.slack-edge-gov.com | 2025-11-26 | 3.163.24.10 |