| Date | IP Address |
| 2023-12-29 | 172.67.219.143 (ClassC) |
| 2024-02-02 | 104.21.17.17 (ClassC) |
| 2025-04-22 | 160.16.200.77 (ClassC) |
| Date | Domain | IP |
| ns1.speech-microsoft.com | 2025-04-05 | 160.16.200.77 |
| ns2.speech-microsoft.com | 2025-04-05 | 160.16.200.77 |
| log.speech-microsoft.com | 2024-02-02 | 8.8.8.8 |
| api.speech-microsoft.com | 2023-12-29 | 172.67.219.143 |
| logs.speech-microsoft.com | 2024-02-02 | 8.8.8.8 |
| westus.speech-microsoft.com | 2023-11-24 | 104.21.17.17 |
| www.speech-microsoft.com | 2023-10-04 | 104.21.17.17 |