Iterable

Official

Iterable publishes machine-readable IPv4/IPv6 prefixes for journey webhooks, system webhooks, and data feeds. Use the JSON for your data center (USDC or EDC). Prefer signature verification alongside IP allowlisting.

Braze Braze Connected Content IP addresses. Klaviyo Klaviyo integration IP addresses. Customer.io Customer.io webhook IP allowlist API. Svix Svix webhook sender IPs.