Lost your smartphone in Japan? Here is exactly what to do — from contacting the police and carriers to remote lock, find my device, and international recovery.
Japan has one of the world's highest phone return rates — studies suggest over 95% of lost phones in Japan are handed in. But that doesn't mean recovery is automatic. You need to act quickly, use the right channels, and navigate a system that operates primarily in Japanese. This guide walks you through every step.
Do this first
Use another device to remotely lock your phone before doing anything else. This prevents unauthorized access to your data while you recover it.
Use Find My iPhone (Apple) or Find My Device (Android/Google) to lock your phone immediately. This protects your personal data even if the device is in someone else's hands.
Enable Lost Mode, which displays a custom message with a contact number on the lock screen. In Japan, a finder is very likely to see this message and try to return the phone.
If you just noticed, go back to the last place you had it. In Japan, honest finders often hand phones to the nearest konbini (convenience store) staff, train station, or police box.
Japanese convenience store (コンビニ) staff and train station staff are accustomed to receiving found items. Check these locations immediately.
| Device | Service | Features |
|---|---|---|
| iPhone / iPad | Find My (iCloud.com) | Location tracking, Lost Mode, remote erase |
| Android (Google) | Find My Device (google.com/android/find) | Location tracking, lock, erase |
| Samsung | Find My Mobile (findmymobile.samsung.com) | Location, lock, backup & erase |
| Any carrier | Contact your carrier | SIM block, network suspension |
Do not remotely erase yet
Resist the urge to remotely erase your phone immediately — once erased, you cannot track its location. Only erase after you have confirmed it cannot be recovered.
In Japan, anyone who finds a lost item is legally required to hand it in to the police within 7 days. Once handed in, the item is registered in the national lost-and-found database (keishicho.metro.tokyo.lg.jp). Filing a report creates a matching record — when the item is found, you will be notified.
If you are still in Japan, visit the nearest police box (交番 / koban) to file a lost item report (遺失届). Bring your passport and a description of the item.
For Tokyo: the Metropolitan Police Department has an online lost item inquiry system at keishicho.metro.tokyo.lg.jp. Available 24/7.
Request a copy of the report with a reference number. This is essential for follow-up and insurance claims.
Japan has a formal, legally mandated system for lost property. Finders are required by law to hand in found items. Items are registered in a national database and the owner is contacted if found. The system works — but all communication is in Japanese.
| Location Lost | Where to Report | Notes |
|---|---|---|
| Train or subway | Station office or Lost & Found center | JR, Tokyo Metro, and private railways have separate systems |
| Taxi | Taxi company dispatch | Note the taxi company name and approximate pickup time |
| Restaurant/shop | Return to the venue directly | Staff often hold items for weeks |
| Street/public area | Nearest koban (police box) | Items handed in within 24 hours typically |
| Airport | Terminal Lost & Found office | See our Airport Guide for full details |
| Hotel | Hotel front desk | Hotels typically hold items for 1–3 months |
| Time Since Loss | Status | Action |
|---|---|---|
| 0–2 hours | Best chance — retrace steps | Check venue, station, konbini immediately |
| 2–24 hours | Likely handed to authorities | File police report, check lost item database |
| 1–7 days | In police database | Follow up daily, use Lost and Found Japan if overseas |
| 1–3 months | Police custody | Contact police lost-and-found center |
| 3+ months | Ownership may transfer | Finder gains legal rights after 3 months unclaimed |
Make sure Find My iPhone or Find My Device is enabled before you arrive in Japan. You cannot enable it retroactively.
Add a Japanese-language contact message to your lock screen. Even basic Japanese: 「これを見つけた方は (+81-XX-XXXX-XXXX) にご連絡ください。」
Ensure your latest backup is done before each trip so you can restore quickly if recovery fails.
Remote erase is irreversible and kills your ability to track the device location.
Find your IMEI in Settings > General > About (iPhone) or dial *#06#. Store it separately from the phone.
Publicizing a lost phone with identifying details can attract bad actors. Keep recovery efforts private and through official channels.
Lost and Found Japan contacts the lost-and-found center in Japanese, confirms your item with photos, and ships it directly to your home anywhere in the world. You only pay if we successfully recover it.
Step-by-step guide to recovering a lost item at Tokyo Haneda Airport (HND). Covers all terminals, contact numbers, English support, and international shipping.
From smartphones to passports, these are the most commonly lost items by tourists in Japan — and the fastest ways to recover each one.
Once your lost item is found in Japan, how do you get it home? Complete guide to international shipping options, costs, customs, and the safest methods.