How to find an AirTag you've lost

If you've lost an AirTag, your first move depends on whether your iPhone, iPad, or Mac can still detect it. Open the Find My app, tap the Items tab at the bottom, and look for your AirTag in the list. If it appears with a green dot, it's still in range and you can play a sound to locate it — tap the AirTag name, then tap Play Sound. If the dot is grey, the AirTag is out of Bluetooth range, but the Find My network may have spotted it recently. Tap the AirTag and look for the last known location on the map.

The Find My app shows you a map pin where the AirTag was last detected. This could be hours or days old depending on how long it's been missing and whether other Apple devices have passed nearby. Walk to that location and play the sound again — sometimes an AirTag is closer than the map suggests. If you still don't see it, check whether the AirTag's battery is dead. A dead AirTag won't play a sound or show a current location, but it will still appear in your Items list with an old timestamp.

Key Takeaways

  • Open Find My, tap Items, and look for your AirTag — a green dot means it's in Bluetooth range and you can play a sound to find it.
  • A grey dot means the AirTag is out of range, but the map shows the last location where another Apple device detected it.
  • If the AirTag doesn't respond to sound or show a recent location, the battery may be dead and needs replacement.
  • You can mark an AirTag as lost in Find My to get notifications if it's detected again, and set a phone number for someone who finds it to call.

Playing a sound when the AirTag is nearby

When your AirTag is still in Bluetooth range — usually within 30 feet of your iPhone — the Find My app shows a green dot next to its name. Tap the AirTag, then tap the speaker icon or Play Sound button. The AirTag will emit a loud beeping noise for about 30 seconds. This is the fastest way to pinpoint exactly where it is if you're in the right area but can't see it.

If you don't hear anything after tapping Play Sound, the battery is likely dead. AirTags use standard CR2032 coin-cell batteries that last about a year with normal use. You'll see a low battery warning in Find My before the battery dies completely. If the battery is dead, you'll need to replace it before the AirTag can be found or tracked again.

Using the map to find an AirTag that's out of range

When your AirTag is too far away to connect directly to your iPhone, the Find My network takes over. This network is made up of hundreds of millions of Apple devices — iPhones, iPads, Macs, Apple Watches — that relay location information about lost items. If any of these devices pass near your AirTag, they send its location back to you, even if you're nowhere nearby.

Tap your AirTag in Find My and look at the map. The pin shows the last location where an Apple device detected it. This location could be hours or even days old if your AirTag hasn't been near any Apple devices recently. The timestamp under the location tells you exactly when it was last seen. If the AirTag is in a remote area or a place where few people carry Apple devices, the location data may not update for a long time.

Go to the last known location and search the area carefully. Check under furniture, in bushes, or anywhere the AirTag might have fallen. Once you get close enough — within about 30 feet — your iPhone will detect it again and the dot will turn green, letting you play a sound to find the exact spot.

Marking an AirTag as lost and setting up notifications

If you think your AirTag is truly lost and you won't find it by searching, mark it as lost in Find My. Tap the AirTag, scroll down, and tap Mark as Lost. This does two things: it turns on notifications so you'll get an alert if the AirTag is detected again, and it lets you set a phone number that will appear on the AirTag's screen if someone finds it and holds it near their iPhone.

When you mark an AirTag as lost, you can add a message and phone number. If someone finds your AirTag and taps it with their iPhone, they'll see your contact information and can call you. This is especially useful if your AirTag ended up in a lost-and-found or with someone who wants to return it. You'll also get a notification the moment any Apple device detects your AirTag again, giving you a fresh location to search.

Checking the AirTag's battery and replacing it

AirTags use a CR2032 coin-cell battery, the same type found in watches and calculators. To check the battery, open Find My, tap your AirTag, and look at the battery percentage shown at the top. If it's below 10 percent, the battery is running low. If it shows no percentage at all, the battery is dead.

To replace the battery, hold the polished stainless steel back of the AirTag and twist the white plastic battery cover counterclockwise until it comes loose. Remove the old battery and drop in a new CR2032 battery with the positive side facing up. Twist the cover back on clockwise until it clicks. The battery should cost between two and five dollars at any pharmacy, grocery store, or electronics retailer. Once you replace the battery, the AirTag will reconnect to Find My within a few seconds.

What to do if Find My shows no location at all

If your AirTag appears in Find My but the map shows no location and no timestamp, it means no Apple device has detected it since you last saw it. This usually happens when an AirTag is in a place where very few people carry Apple devices — a remote area, a basement with poor signal, or inside a metal container that blocks Bluetooth.

Check whether the AirTag's battery is dead by trying to play a sound. If nothing happens, replace the battery. If the battery is fine but still no location appears, physically search the places where you last remember having the AirTag. Retrace your steps from the last known location. If you still can't find it after a thorough search, you can order a replacement AirTag from Apple or remove it from Find My to stop looking.

Finding an AirTag someone else owns

If you find an AirTag that doesn't belong to you, hold it near your iPhone. After a few seconds, a notification will appear with the owner's information and a phone number to call. Some owners set a custom message instead of a phone number. Follow the instructions on the screen to contact the owner and arrange to return it.

If the AirTag doesn't show any information when you tap it, the owner may not have set up lost mode yet. You can still try to return it by taking it to an Apple Store, where staff can help identify the owner. Do not try to remove the battery or open the AirTag — just hand it over to someone who can help.

Frequently Asked Questions

Can I find an AirTag if it's turned off?

AirTags don't have an on/off switch. They're always broadcasting their location to the Find My network unless the battery is dead. If you think your AirTag is off, it's more likely the battery has died and needs replacement.

How far away can I find an AirTag?

If your AirTag is within 30 feet and has a working battery, you can find it by playing a sound. Beyond that range, you depend on the Find My network — the distance is unlimited, but the location updates only when another Apple device passes near it.

Will my AirTag work if I travel to another country?

Yes. The Find My network works worldwide because it uses the same Apple devices that are already in those countries. Your AirTag will report its location no matter where it is, as long as Apple devices are nearby.

What if my AirTag is in a place I can't reach?

If the map shows your AirTag is on a roof, in a wall, or somewhere inaccessible, you may need to contact the building owner or manager for help retrieving it. Mark it as lost so you get notified if it moves to a reachable location.

Can I find someone else's AirTag without their permission?

No. You can only see and control AirTags that are linked to your Apple ID in Find My. You cannot track someone else's AirTag, and doing so would be illegal in most places.