How to find the model or serial number of an AirTag

To find the serial number of an AirTag, use the Find My app, tap it with an NFC-capable smartphone, or look under the battery. To identify which generation of AirTag that you have, use the Find My app or look under the battery for the model number.

Check in the Find My app for the model or serial number

  1. Open the Find My app.

  2. Tap Items.

  3. Find the AirTag and tap the name of the AirTag for the details.

  4. To see the model or serial number, tap the address.

An iPhone showing an item called “House Keys” in the Find My app. Below the address of the item, it shows the model, serial number, and firmware number.

Hold the AirTag near your smartphone for the serial number

  1. Tap and hold the top of your iPhone or NFC-capable smartphone1 to the white side of the AirTag.

  2. Tap the notification that appears.

  3. A webpage opens, showing the serial number.

An iPhone showing an About this Apple AirTag webpage in Safari. It shows the model, serial number, and the last four digits of the owner’s phone number.

Look under the battery for the model or serial number

  1. Press down on the polished stainless steel battery cover of the AirTag and rotate counterclockwise until the cover stops rotating.

  2. Remove the cover and battery.2

  3. Find the serial number printed inside the AirTag.

    An image of the inside of an AirTag after the battery has been removed. The serial number and model number are listed around edge.

    • The serial number is 10 or 12 digits.

    • The model number is A2187 for AirTag, A2937 for AirTag (2nd generation).

  4. Replace the battery with the positive side up. When you hear a sound, that means the battery is connected.

  5. Replace the cover by aligning the three tabs on the cover with the three slots on your AirTag.

  6. Press down on the cover.

  7. Rotate the cover clockwise until it stops rotating.

  1. If you don't have an iPhone, your smartphone's NFC reader might be in a different place.

  2. Warning: AirTag, the battery cover, and the battery might present a choking hazard or cause other injury to small children. Keep these items away from small children.

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