Japan Post Tracking
Japan Post (日本郵便, Japan Post Co.) is the national postal operator of Japan and the carrier behind most letters, EMS shipments, and small packets that move in and out of the country. If you bought something from a Japanese seller, ordered from a shop on Rakuten or Mercari, or are waiting on an EMS parcel, there's a good chance Japan Post handled the first or last leg. Drop your tracking number into Parceler and we'll follow it across Japan Post and any partner carrier that takes over abroad.
Universal service to every address — both domestic mail and parcels handed over from foreign posts.
About Japan Post
Japan Post traces its roots to the modern postal system founded in 1871 and today operates as Japan Post Co. under the Japan Post Holdings group, running one of the densest post office networks in the world with roughly 24,000 branches across the country. Beyond domestic mail it is Japan's gateway for international parcels, offering EMS (Express Mail Service) alongside slower air and surface options that connect to destination postal operators worldwide.
For an international shipment, a package typically starts at a local post office or collection point in Japan, is processed through an outward office of exchange (often in Tokyo or Osaka), clears Japanese export customs, and then flies to the destination country where the national postal service or its delivery partner completes the final mile. Domestic parcels under the Yu-Pack brand move through Japan Post's regional sorting hubs and are usually delivered within a day or two.
Japan Post tracking number format: International items (EMS, ePacket, registered mail) use the universal UPU format: two letters, nine digits, then a country code of JP — for example EE123456789JP or RR123456789JP. Domestic Yu-Pack numbers are typically 11 or 12 digits with no letters.
What to expect from a postal delivery
National posts run the widest delivery network in their country, which shapes both the speed and the tracking detail you see.
Delivery to every address
Universal-service rules mean the post reaches addresses private couriers often skip — rural routes, PO boxes, islands.
Inbound international handoff
Parcels from abroad are passed to the local post for the last leg, so tracking can switch carriers at the border.
Economy timelines
Standard and economy postal classes trade speed for cost, so gaps between scans are common and usually fine.
Collection options
Missed deliveries are typically held at a local post office or collection point for pickup with ID.
Japan Post services
The shipping options you'll most often see on Japan Post parcels.
EMS (Express Mail Service)
Japan Post's fastest international option, with priority handling, customs paperwork built in, and full tracking to most countries.
Yu-Pack
The domestic parcel service for shipping packages within Japan, with door-to-door delivery and time-slot options.
International ePacket / Small Packet
Economical air services for lightweight international parcels, popular with eBay, Etsy, and cross-border eCommerce sellers.
Airmail & Surface (SAL) parcels
Standard international parcel post by air or sea for senders who want lower cost over speed.
Letter Pack & Yu-Mail
Flat-rate domestic envelopes and printed-matter mail for documents, books, and small flat items.
Two ways to track Japan Post
Either method works. Parceler is faster when you order from multiple carriers and want one timeline for everything.
Track on Japan Post.com
- 1. Find your tracking number — for international items it looks like XX000000000JP (two letters, nine digits, ending in JP); for domestic Yu-Pack it's an 11-12 digit number.
- 2. Go to japanpost.jp (or trackings.post.japanpost.jp) and look for the tracking / 追跡サービス box; you can switch the site to English from the language selector.
- 3. Enter your tracking number — you can paste several at once, separated by line breaks — and submit.
- 4. Read the scan history: it shows the posting office, dispatch from the outward office of exchange, departure from Japan, and arrival in the destination country.
- 5. Once the item leaves Japan, detailed updates usually come from the destination postal carrier — paste the same number into Parceler to see Japan Post and the receiving carrier together in one timeline.
Track on Parceler
- 1. Paste your Japan Post number above. No sign-up.
- 2. Parceler auto-detects the carrier — no dropdown to pick from.
- 3. See every scan event, location, and timestamp on a single timeline.
- 4. Optionally subscribe to push or email alerts for status changes.
Parceler vs. Japan Post's native tracking
The carrier's own site shows the data they own. Parceler unifies every leg — including the partner handoff at the border — and adds tools the carrier doesn't.
| Feature | Parceler | Japan Post |
|---|---|---|
| Live tracking | Yes | Yes |
| Multiple carriers in one place | Yes | No |
| Cross-border handoff stitching | Yes | No |
| Push & email notifications | Yes | Limited |
| Tracking translated to your language | Yes | No |
| Public API for sellers | Yes | Varies |
| Branded post-purchase pages | Yes | No |
What you get when you track Japan Post here
- Real-time status updates the moment they hit the carrier network.
- One search box for 230+ carriers worldwide.
- Optional email and push alerts on every status change.
- Bulk tracking — paste dozens of numbers, auto-detected.
- Status events translated into 30+ languages.
- Free for shoppers. No sign-up, no paywall.
Contacting Japan Post
Parceler doesn't operate Japan Post's delivery network — questions about a specific parcel need to go to them directly.
- Support site
- japanpost.jp — forms, claims, self-service.
- Live chat
- Widget on most Japan Post pages during local business hours.
- Phone
- Country-specific helplines for Japan and Asia.
Japan Post tracking — questions answered
International items follow the UPU pattern of two letters, nine digits, and the country code JP, such as EE123456789JP for EMS or RR123456789JP for registered mail. Domestic Yu-Pack parcels instead use an 11- or 12-digit number with no letters.
