How do I know who is calling?

When you receive a call to your Burner, it is routed through your actual phone number and will show up as your Burner number calling you. However, you can receive a notification that tells you when a number is calling and who it is before the Burner number is shown as calling you.

On the Burner app: Tap the gear icon to open your Burner's Settings page > Toggle your Rings and Notifications so they are turned “On.”
On your device: Open your device's Settings page > Scroll down until you see the Burner app > Make sure all Notifications for Burner are allowed.