| Date | IP Address |
| 2021-12-02 | 34.253.0.152 (ClassC) |
| 2025-11-22 | 34.251.120.116 (ClassC) |
| 2025-12-04 | 99.81.248.130 (ClassC) |
| Date | Domain | IP |
| node-red.conversation-platform-beta.prod.sinch.com | 2025-08-14 | 34.242.109.160 |
| sinch-chat.istio-ingress.eu1.unauth.prod.sinch.com | 2024-01-03 | 34.240.239.33 |
| grpc-web.sinch-chat.unauth.prod.sinch.com | 2025-09-24 | 34.243.80.241 |
| docusign.rm-portal.prod.sinch.com | 2025-11-22 | 34.251.120.116 |
| composer.eu1.message-composer.prod.sinch.com | 2025-08-12 | 34.252.5.77 |
| previewer.eu1.message-composer.prod.sinch.com | 2025-08-13 | 108.128.85.144 |