If your EGG has a warranty registration cover sheet included with the set-up manual, your EGG ID is a 12 digit number found in the yellow box on the sheet and looks like the image below.'
If your EGG does not include a cover sheet, you can use your EGG’s serial number that can be found stamped inside the dome, at the back side, just above the gasket. You can see "2V322120116" in the example.