Lost Your Phone in Japan? What to Do
If you lose your phone in Japan, first secure the device and your mobile service, then contact the place where you may have lost it. If the phone is not found or the location is unclear, file a Lost Property Report with the police.
This guide explains what to do in order, what information helps identify a phone, and what to confirm if it is found after you leave Japan.
1. Use Find My or Find Hub to Locate and Secure the Phone
Treat the map location as a clue, not proof of who is currently holding the phone. If it appears near a hotel, station, airport, restaurant, shop, or other identifiable facility, contact the relevant facility and confirm whether the phone has been turned in.
If the location appears to be an unfamiliar residence or another place where theft may be possible, do not go there yourself. Contact the police and follow their instructions.
If you use Android, erasing the device prevents you from locating it afterward with Find Hub. If you use an iPhone, Apple recommends trying other recovery steps before erasing it. If you do erase an iPhone, do not remove it from Find My, because doing so removes Activation Lock.
2. Contact Your Mobile Carrier
Contact your mobile carrier as soon as possible and follow its instructions for suspending the SIM or mobile service.
If the phone is later recovered, ask the carrier how to restore service before making changes on your own.
3. Contact the Place Where You May Have Lost It
Start with the location most likely to have the phone.
| Where you may have lost it | Contact first |
|---|---|
| Hotel or ryokan | Hotel or ryokan — See our hotel lost item guide |
| Airport terminal | Airport Lost & Found — See our airport lost item guide |
| On an aircraft | Airline |
| Train or station | Railway operator — See our train lost item guide |
| Restaurant, café, or store | Facility directly |
| Taxi | Taxi company or dispatch service |
| Not sure | Police |
When you contact a facility, provide the date, approximate time, exact location, phone model, color, case, and any distinctive features you can describe.
4. If It Is Not Found, File a Lost Property Report
If the facility cannot find your phone, or you are not sure where it was lost, file a Lost Property Report with the police.
If you are still in Japan, you can visit a nearby police station or koban. In many prefectures, online reporting is also available, although procedures vary.
Keep any report number or reference information you receive.
The National Police Agency provides links to prefectural lost property reporting and search services.
A Lost Property Report creates a record that may help the police match your report with a phone handed in later. It does not mean the police will actively search hotels, trains, airports, shops, or other locations for your phone.
Depending on the prefecture, online lost property search services may also let you check whether matching property has been handed in and where it is being held.
If you have tried the appropriate contacts but the phone is still missing, continuing the search can be difficult, especially if you have already left Japan or need to communicate in Japanese. Our Search Service can help with local inquiries in Japan, while our Full Service is available if you also need help with collection and return after the phone is found.
5. What Information Helps Identify a Phone?
Useful identifying information may include:
- Manufacturer and model
- Color and case
- Phone number
- IMEI or serial number, if available
- Distinctive scratches, stickers, accessories, or wallpaper
- Date, time, and location where you last had it
According to 2025 data from the Tokyo Metropolitan Police, 144,064 mobile phones were handled as lost property and 119,516 were returned to their owners — about 83%. This is Tokyo data, not a nationwide return rate.
6. What to Confirm If Your Phone Is Found
If a hotel, railway operator, airport, shop, taxi company, or police office confirms that your phone has been found, ask:
- Where it is currently being held
- The lost property or reference number, if available
- The pickup or storage deadline
- Whether it has been transferred to another facility or police office
Found property may move from the original facility to the police, so confirm the current holding location before making collection arrangements.
If you had already suspended your SIM or mobile service, continue following your carrier’s instructions before restoring service.
7. If You Have Already Left Japan or Cannot Collect It Yourself
If your phone is still missing after you have contacted the likely locations, our Search Service may be able to help with local inquiries in Japan.
If the phone has already been located, our Pickup & Delivery Service may be able to help when proxy collection is permitted.
We can assist with local communication, collection when permitted, and return arrangements. What can be collected or returned depends on the holding facility, the device, and applicable delivery restrictions.
Summary
If you lose a phone in Japan:
- Use Find My or Find Hub to locate and secure the device.
- Contact your mobile carrier and protect your mobile service.
- Contact the place where you may have lost the phone.
- If it is not found or the location is unclear, file a Lost Property Report with the police.
- Provide identifying information such as the model, case, IMEI, and last known location.
- If the phone is still missing and continuing the search is difficult, consider the Search Service or Full Service depending on how much support you need.
- If the phone is found, confirm the current holding location, reference number, and deadline.
- If you cannot collect it yourself, confirm what collection options are available and consider the Pickup & Delivery Service if needed.
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About the Author
Yusuke Baba — Founder, Japan Lost and Found Service
I once lost my MacBook during my honeymoon, so I know how stressful it can be to lose something important while traveling. That experience is one of the reasons I started Japan Lost and Found Service—to help travelers who are dealing with the same situation, especially when language and distance make recovery difficult.
I hope this guide helps you understand what to do next. If you need help recovering something you lost in Japan, please feel free to contact us.