Firewall Settings for APIs
Do not use these IPs for SIP. This page is for API traffic only (Call Cadence, CDR webhooks, SMS traffic, and related services).
Add the following IP addresses to your firewall/ACL to receive API traffic from the Smart Carrier network. Smart Carrier maintains five geographically distributed endpoints for redundancy.
| Location | IP Address | Subnet |
|---|---|---|
| US East I (Virginia) | 3.229.183.76 | /32 |
| US East II (Virginia) | 3.212.1.11 | /32 |
| US West I (California) | 52.55.221.115 | /32 |
| US West II (Washington) | 35.168.149.159 | /32 |
| US West III (Oregon) | 50.16.105.238 | /32 |
It is highly recommended to add all IPs to your firewall configuration. The Smart Carrier network automatically routes API requests to your platform from the most responsive location.