I need to check my AirPods serial

Hi,

Welcome to Apple Support Communities.

If you need to find the serial number of your AirPods, the resource linked to your post has the best steps to take to achieve this:

Find the serial number of your AirPods

If you need more information about the AirPods warranty status, you can use this link to check on that:

Check Your Service and Support Coverage

This link may help if checking for authenticity: Identify your AirPods

Cheers!