Calendly IP address update
Updated February 25, 2026·1 min read
Available to all users on all plans.View plans
To keep Calendly secure and reliable, we're updating the public IP addresses used by our website and APIs on February 18, 2025.
If your company uses a firewall or similar security tool that requires IP allowlisting, follow the steps below to avoid service interruptions.
Allowlist the new IP addresses
- Go to our developer IP address list.
- Update your firewall or security settings to include all IP addresses listed.
Test your setup
After updating your settings, test Calendly to confirm everything works as expected.
Was this article helpful?
Let us know so we can improve our content.