In this guide, we will show you how to find the serial number of an unknown AirTag. This guide is applicable for iPhone as well as any Android smartphone that has NFC connectivity support.
Step 1: Tap and hold the AirTag’s white side on top of your smartphone.
Step 2: Now, tap on the notification bar that pops up on your device.
If you don’t see a notification after a few seconds, reposition the AirTags slightly to align it better with the smartphone’s NFC sensor.
Step 3: You will now be taken to found.apple.com in Safari, showing the serial number of the AirTag.
Do note that when placing the AirTag on top of the smartphone, keep it close to the NFC sensor. On iPhone, it is at the top while the location differs on Android smartphones based on the manufacturer. Usually, it is somewhere near the middle-top.