| Date | IP Address |
| 2021-10-18 | 54.232.223.154 (ClassC) |
| 2024-09-16 | 18.228.234.250 (ClassC) |
| 2024-12-29 | 18.229.82.177 (ClassC) |
| Date | Domain | IP |
| calling-euc1.api.sinch.com | 2024-06-09 | 52.58.86.112 |
| ocra-apse1.api.sinch.com | 2024-01-16 | 52.76.85.245 |
| ocra-use1.api.sinch.com | 2024-10-04 | 52.203.53.12 |
| calling-use1.api.sinch.com | 2024-06-09 | 34.234.166.186 |
| ms-calling-use1.api.sinch.com | 2023-10-18 | 34.239.238.54 |
| calling-euc1-r1.api.sinch.com | 2024-06-11 | 3.65.65.110 |
| ocra-use1-r1.api.sinch.com | 2024-08-03 | 35.175.91.222 |
| ocra-bolt-r1.api.sinch.com | 2024-06-10 | 35.156.159.143 |
| clientapi-r2.api.sinch.com | 2024-02-21 | 18.141.97.1 |
| ocra-bolt-r2.api.sinch.com | 2023-10-31 | 35.158.68.54 |
| ocra.api.sinch.com | 2024-10-04 | 44.206.147.198 |
| ocra-grab.api.sinch.com | 2023-08-09 | 52.76.36.159 |
| us1.venice.api.sinch.com | 2024-12-29 | 99.83.206.118 |
| br.template.api.sinch.com | 2024-09-16 | 18.228.234.250 |
| messaging.api.sinch.com | 2024-12-06 | 13.248.152.61 |
| calling.api.sinch.com | 2024-11-10 | 34.198.71.15 |
| sms.api.sinch.com | 2024-12-26 | 76.223.66.78 |
| ocra-bolt.api.sinch.com | 2023-08-04 | 34.224.77.246 |