How to find the 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.

Check in the Find My app

  1. Open the Find My app.

  2. Tap Items.

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

  4. The serial number will appear under the name.

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Hold the AirTag near your smartphone

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

  2. Tap the notification that appears.

  3. A web page will open, displaying the serial number.

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Look under the battery

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

  2. Remove the cover and battery.2

  3. Find the serial number printed inside the AirTag.

  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.

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

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

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