Left a bag on a Tokyo train? Start here

01

Write one journey and item note

1. Record the travel date, approximate time, boarding and exit stations, direction, and car or seat if remembered. Add the item’s colour, brand, contents and distinguishing marks. A photograph can help explain which bag you mean. Mark uncertain details as approximate rather than inventing a train number.
2. For a recent Tokyo Metro loss, contact the nearest station office first. Its official guide says staff can check items found at other stations too. For JR East, its FAQ likewise directs passengers to station staff; if you cannot visit a station, it directs you to the JR East Infoline.
3. Keep the inquiry details and any reference supplied. Ask how to follow up if there is no match yet. Before leaving the counter, decide how you will receive a reply during the rest of your trip. These are preparation steps, not a promise that the item will be found.

02

Choose the official inquiry route

• A Tokyo Metro through-service train may continue onto another company’s railway. Metro asks passengers to contact the connecting company too. Show the full route to staff rather than assuming the train stayed within the network where you boarded.
• Use the current official contact instructions. At this review, Metro’s English page describes a form while its Japanese page says ordinary email inquiries are not accepted and directs users to a chatbot or phone. Check the available channel with staff. JR East lists English, Chinese and Korean Infoline support; check its current hours before calling.