| Date | IP Address |
| 2025-01-15 | 13.88.42.97 (ClassC) |
| Date | Domain | IP |
| global.billing.dev.communication.microsoft.com | 2024-12-14 | 13.88.42.97 |
| westus.billing.dev.communication.microsoft.com | 2025-01-15 | 13.88.42.97 |
| westeurope.auth.dev.communication.microsoft.com | 2024-12-23 | 4.225.76.49 |
| global.auth.dev.communication.microsoft.com | 2024-11-13 | 13.88.42.111 |
| eastus.auth.dev.communication.microsoft.com | 2024-05-10 | 20.81.50.107 |
| westus.auth.dev.communication.microsoft.com | 2024-11-21 | 13.88.42.111 |
| global.sms.dev.communication.microsoft.com | 2024-07-26 | 13.88.42.15 |
| teamsevents.dev.communication.microsoft.com | 2024-12-14 | 20.245.128.80 |
| global.teamsevents.dev.communication.microsoft.com | 2024-12-14 | 20.245.128.80 |
| smsgw.dev.communication.microsoft.com | 2024-12-14 | 104.40.87.85 |