Japan Post Tracking

Please enter the Japan Post tracking number to check the latest shipping status.

https://www.japanpost.jp/

TRACK

About Japan Post

Japan Post is the postal and parcel operator of Japan Post Co., Ltd., providing domestic mail and parcel delivery in Japan and international postal services such as EMS, international Parcels, registered mail and small packets through the global postal network. In tracking, Japan Post may be the origin carrier for items mailed from Japan, the domestic carrier for Japanese shipments, or the destination postal operator for inbound international mail delivered in Japan.

Core carrier profile

Field	Verified information
Official name	Japan Post Co., Ltd.
Official website	https://www.japanpost.jp/
Carrier type	Postal operator, domestic parcel carrier, international postal carrier and last-mile postal delivery operator in Japan.
Primary region	Japan for domestic pickup, processing and delivery; international postal exchange with destination and origin postal operators worldwide.
Tracking page	Japan Post Track & Trace Service
Parent organization	Japan Post Holdings Co., Ltd.
Founded	Current corporate founding information should be checked on the official company profile before use in legal or investor materials.
Headquarters	Tokyo, Japan, as stated in Japan Post group company information.

The public brand “Japan Post” should not be confused with Japan Post Holdings, which is the holding company, or with a foreign postal operator that may carry the same item after a cross-border handoff. A Japan Post tracking result can include scans from Japan Post and, for international mail, information exchanged with foreign postal administrations.

Carrier Entity Relationships

Entity

Relationship summary

Japan Post Co., Ltd.

Japan Post Co., Ltd. is the operating company behind Japan Post postal, parcel and international mail services.

View all details for Japan Post Co., Ltd.

Entity type	Canonical carrier and legal operating company.
Why it matters to tracking	The operating company is responsible for official domestic scans, acceptance scans and delivery scans for Japan Post items in Japan.
Official evidence	Japan Post official website and company information pages identify Japan Post Co., Ltd. as the postal service operator.

Yu-Pack, Yu-Packet, Letter Pack and registered mail

Domestic postal and parcel services are operated by Japan Post and use Japan Post domestic tracking infrastructure when tracking is included.

View all details for domestic Japan Post services

Entity type	Operated services.
Why it matters to tracking	Domestic scans show acceptance, transport, out-for-delivery, attempted delivery, pickup availability and delivery in Japan.
Official evidence	Japan Post domestic mail, parcel and Track & Trace pages.

EMS and international parcel post

Japan Post accepts and exports international postal items from Japan and exchanges tracking data with destination postal operators.

View all details for Japan Post international services

Entity type	International postal service entities.
Why it matters to tracking	After dispatch from Japan, the physical custodian may be an airline, destination customs authority or destination postal operator, even while the same S10 tracking number remains visible.
Official evidence	Japan Post international mail service, tracking and service availability pages.

International exchange offices and customs

Japan Post processes outbound and inbound international mail through exchange and customs-related stages before a foreign or domestic postal handoff.

View all details for Japan Post international processing entities

Entity type	Key network and facility entities.
Why it matters to tracking	Events such as dispatch from outward office of exchange, arrival at inward office of exchange and customs presentation mark custody and regulatory checkpoints, not final delivery.
Official evidence	Japan Post international tracking event language and international mail guidance.

Destination postal operators

Foreign postal operators such as USPS, Royal Mail, La Poste, Deutsche Post/DHL and Australia Post commonly provide customs and last-mile scans for Japan-origin postal mail in their territories.

View all details for destination postal handoffs

Entity type	International or last-mile partners in the postal network.
Why it matters to tracking	Once a destination operator receives the item, delivery attempts, collection notices, import duty requests and proof of delivery usually depend on that operator.
Official evidence	UPU postal exchange model and destination postal tracking pages.

17TRACK

17TRACK is an independent multi-carrier tracking platform that aggregates available Japan Post and partner tracking events but does not transport or modify shipments.

View all details for 17TRACK and Japan Post tracking

Entity type	Independent tracking platform.
Why it matters to tracking	17TRACK helps users follow multi-carrier handoffs and normalize statuses, but claims, address changes, redelivery and refunds must be handled through Japan Post, the destination carrier or the merchant.
Official evidence	17TRACK carrier tracking and API documentation.

Quick Answer

To track a Japan Post package, enter the tracking number from the mailing receipt, shipping label, delivery notice or seller shipment email on the official Japan Post Track & Trace page, or use 17TRACK to view available Japan Post and partner-carrier events in one place. If the result is empty, first check for typing errors, spaces, hyphens, a merchant order number instead of a postal tracking number, or a shipment that has not yet received its first acceptance scan.

Pro Tip: 17TRACK is an independent tracking platform. 17TRACK can display tracking events that are available from Japan Post and connected carriers, but 17TRACK cannot change an address, arrange redelivery, approve a claim, refund postage, collect customs duty or contact a courier on your behalf.

How to Track Japan Post Packages

Use the official Japan Post tracker for authoritative Japan Post events, and use 17TRACK when an item may involve both Japan Post and a destination postal operator.

Tracking paths and first checks

Path

What to do

Official Japan Post tracking

Open the Japan Post Track & Trace page, enter the tracking number exactly as printed, remove optional spaces or hyphens, and check the latest official event.

View all details for official Japan Post tracking

Best for	Domestic Japan Post items, EMS from Japan, international Parcels from Japan, registered mail, delivery confirmation and redelivery-related checks in Japan.
Where to find the number	Counter receipt, online shipping label, international postal label, marketplace shipment confirmation or attempted-delivery notice.
Common mistake	An order number, invoice number or marketplace reference is not always a postal tracking number.

17TRACK tracking

Paste the tracking number into 17TRACK to let 17TRACK detect or combine available events from Japan Post and destination postal operators.

View all details for 17TRACK tracking

Best for	Cross-border orders, marketplace shipments, multi-carrier handoffs and users who want standardized status categories.
Carrier recognition	A number that Japan Post can display may have been issued by Japan Post, a foreign origin post, a seller’s logistics partner or a destination postal operator.
Limitation	17TRACK cannot create events before a carrier receives data or scans the item.

No tracking number

Ask the sender or seller for the Japan Post tracking number, not only the order number, and confirm whether the chosen service includes tracking.

View all details for missing Japan Post numbers

Recipient action	Request the receipt number or label number from the sender and compare the destination address with your order record.
Sender action	Check the counter receipt, online label history, shipping manifest or business shipping system.
Service caveat	Some ordinary letter or economy services may have limited or no end-to-end tracking unless registered, insured or otherwise trackable.

Tracking Number Formats and Examples

Japan Post uses different identifier families for domestic postal items and international postal items. International postal items commonly use the UPU S10 structure: two service-indicator letters, nine digits including a check digit, and a two-letter country code such as JP for Japan-origin items.

Tracking Number Format

Identifier family

Normalized pattern

Japan Post domestic parcel and mail tracking

Usually a numeric domestic tracking number printed on the receipt or label; remove spaces and hyphens before searching.

View all details for Japan Post domestic tracking numbers

Length/structure	Japan Post publishes service-specific tracking through its Track & Trace system; domestic numbers are commonly numeric and may be grouped on receipts for readability.
Issued by	Japan Post or a Japan Post-approved label system.
Typical service/use	Yu-Pack, Yu-Packet, Letter Pack and registered or recorded domestic postal services when tracking is included.
Who sees it and where	Domestic senders see it on a counter receipt or shipping label; recipients may see it in a seller email, SMS, delivery notice or marketplace order page.
Tracking scope	Acceptance, transport, arrival at local delivery office, out for delivery, attempted delivery, pickup and delivered events in Japan.
Important caveat	Do not infer the exact service from the first digits alone unless the label or Japan Post result confirms it.

EMS from Japan

EA ######### JP or EM ######### JP style S10 examples, with two letters, nine digits and JP country code.

View all details for Japan Post EMS identifiers

Length/structure	13 characters after normalization: two letters plus nine digits plus JP. The final digit in the numeric block is part of the S10 check-digit system.
Issued by	Japan Post when the EMS item is accepted or labelled in Japan.
Typical service/use	Express Mail Service for documents or merchandise where EMS is available for the destination.
Who sees it and where	Sender sees it on the EMS label or receipt; buyer sees it in the seller shipment notification.
Tracking scope	Japan Post origin events, export, destination exchange office, customs-related events where shared, and destination postal delivery scans.
Important caveat	EMS availability, acceptance conditions and delivery standards vary by destination and service announcements.

International parcel post from Japan

CP ######### JP or CC ######### JP style S10 examples for parcel-type international postal items.

View all details for Japan Post international parcel identifiers

Length/structure	13-character UPU S10 identifier using C-prefix service letters, nine digits and JP.
Issued by	Japan Post for outbound international Parcels mailed in Japan.
Typical service/use	Air, surface air lifted or surface international parcel options where offered.
Who sees it and where	Counter receipt, postal label, customs declaration label, online label history and ecommerce shipment notice.
Tracking scope	Usually end-to-end postal tracking, but destination visibility depends on the foreign postal operator and product.
Important caveat	Arrival at an inward office of exchange is not the same as customs release or final delivery.

Registered international mail from Japan

RA ######### JP or RR ######### JP style S10 examples for registered mail-type identifiers.

View all details for Japan Post registered international mail identifiers

Length/structure	13-character S10 identifier using R-prefix service letters, nine digits and JP.
Issued by	Japan Post for registered international letter-post or small-packet items mailed in Japan.
Typical service/use	Registered small packet, registered letter or Other registered international postal item where accepted.
Who sees it and where	Sender receipt, registered label, seller shipment notification or postal customs documentation.
Tracking scope	Registered mail usually has custody events, but intermediate and delivery scans can differ by destination postal operator.
Important caveat	Registered mail is a postal accountability service; it is not the same as express delivery.

Inbound international postal number delivered in Japan

LX ######### CN, LP ######### SG, RR ######### Us or similar S10 numbers ending with the origin country code.

View all details for inbound numbers handled by Japan Post

Length/structure	Typically 13-character UPU S10 identifiers where the last two letters identify the origin postal operator’s country, not Japan.
Issued by	The foreign origin post or its authorized postal logistics channel, not Japan Post.
Typical service/use	International ecommerce packets, registered mail, EMS or parcel post entering Japan for delivery by Japan Post.
Who sees it and where	Japanese recipients may receive it from an overseas seller, marketplace or foreign postal service.
Tracking scope	Origin-post events before export, Japan Post inbound exchange, import customs-related events and Japan domestic delivery scans if data is shared.
Important caveat	Japan Post can track or deliver the item after inbound handoff, but that does not mean Japan Post issued the number.

Merchant order, reference or invoice number

Seller-defined text or numeric reference that may not match any Japan Post tracking number.

View all details for merchant references

Length/structure	Varies by marketplace, warehouse or seller system.
Issued by	Merchant, marketplace, warehouse, fulfillment provider or payment system.
Typical service/use	Order lookup, seller support, warehouse dispatch or customer service reference.
Who sees it and where	Buyer account page, invoice, order confirmation email or seller portal.
Tracking scope	Not trackable by Japan Post unless mapped to a postal tracking number.
Important caveat	Ask the seller for the carrier tracking number if Japan Post or 17TRACK returns no result.

Tracking Statuses and Meanings

Japan Post tracking statuses follow the physical lifecycle of the item. A pre-shipment or label event does not prove that Japan Post has the package; an acceptance event is the first strong sign that Japan Post physically received it.

Status Quick Lookup

Status

What it means

Posting / Acceptance

Japan Post has accepted the item at a post office, collection point or mail processing channel.

View all details for Posting / Acceptance

Lifecycle stage	Accepted.
Current responsible party	Japan Post.
What happens next	The item moves to a sorting office, delivery office or international exchange process depending on service.
What you should do	Wait for the next scan unless the address or service is wrong; senders should keep the receipt.

Arrival at outward office of exchange

An international item has reached Japan Post’s export exchange process before dispatch from Japan.

View all details for outward exchange arrival

Lifecycle stage	Customs/Handover.
Current responsible party	Japan Post and export security/customs-related processes where applicable.
What happens next	Dispatch abroad after export processing and transport assignment.
What you should do	Do not assume delay unless the service alert or destination availability page indicates suspension or backlog.

Dispatch from outward office of exchange

Japan Post has dispatched the international item from Japan toward the destination country or transit route.

View all details for dispatch from outward exchange

Lifecycle stage	In transit.
Current responsible party	Line-haul carrier, airline, postal exchange partners and destination postal network after arrival.
What happens next	A visibility gap is common until the destination operator scans the item at the inward exchange office.
What you should do	Track with 17TRACK or the destination postal operator, but avoid opening a claim solely because there is no flight-level scan.

Arrival at inward office of exchange

The item has arrived in the destination country’s international postal exchange process.

View all details for inward exchange arrival

Lifecycle stage	Customs/Handover.
Current responsible party	Destination postal operator and import customs authority.
What happens next	Customs presentation, duty assessment, release or domestic sorting may follow.
What you should do	Check destination-post tracking and be ready to provide customs information or pay duties if requested.

Held by import customs

The item is under customs review, missing information check or duty/tax handling.

View all details for customs hold

Lifecycle stage	Customs/Handover.
Current responsible party	Customs authority, destination postal operator and sometimes the recipient for missing documents or tax payment.
What happens next	Release, request for information, assessment of tax or return/seizure if prohibited.
What you should do	Follow the destination carrier or customs notice; Japan Post and 17TRACK cannot override import decisions.

Processing at delivery post office

The item has reached the local delivery office responsible for the delivery address.

View all details for local delivery office processing

Lifecycle stage	In transit / delivery preparation.
Current responsible party	Japan Post for Japan domestic delivery, or the destination postal operator outside Japan.
What happens next	Out-for-delivery scan, pickup notice or delivery attempt.
What you should do	Check for a delivery notice and confirm the address and name on the mailbox or reception desk.

Out for delivery

The item is with a delivery route or delivery office for an attempt that day where normal operations allow.

View all details for Out for delivery

Lifecycle stage	Out for delivery.
Current responsible party	Local delivery carrier.
What happens next	Delivery, attempted delivery, pickup availability or exception.
What you should do	Be available for signature or receipt, and watch for a delivery notice if the item cannot be delivered.

Absence. Attempted delivery

The delivery carrier attempted delivery but could not hand over the item, commonly because the recipient was absent or a signature/payment was required.

View all details for attempted delivery

Lifecycle stage	Pickup / Exception.
Current responsible party	Local delivery office and recipient.
What happens next	Redelivery request, post-office pickup or return if storage expires.
What you should do	Use the attempted-delivery notice or official redelivery page for the local operator as soon as possible.

Delivered

The item has a delivery completion scan, pickup completion scan or handover confirmation.

View all details for Delivered

Lifecycle stage	Delivered.
Current responsible party	Recipient, authorized receiver, pickup counter or delivery carrier depending on delivery method.
What happens next	No further movement unless a correction or investigation is opened.
What you should do	If not received, check mailbox, parcel locker, reception, family members, neighbors and proof of delivery before escalating.

Returned to sender

The item is moving back to the sender because delivery, pickup, customs clearance or address resolution failed.

View all details for Returned to sender

Lifecycle stage	Return.
Current responsible party	Carrier currently transporting the return and the sender for reshipment decisions.
What happens next	Return transport, return delivery, seller refund or reshipment depending on merchant policy and carrier findings.
What you should do	Recipient should contact the seller; sender should inspect the return reason and correct customs or address issues before reshipping.

Services and Delivery Times

Japan Post delivery time depends on service, origin, destination, acceptance time, address quality, customs, transport availability and service suspensions. Published standards and availability should be checked on Japan Post before shipping; 17TRACK ETA, when displayed, is an estimate based on tracking patterns rather than a Japan Post guarantee.

Service Comparison

Service

Best for

Yu-Pack

Trackable domestic Parcels within Japan, including consumer and ecommerce shipments.

View all details for Yu-Pack

Service type	Domestic parcel.
Coverage	Japan domestic network.
Tracking level	Trackable with acceptance, transport, delivery office, attempt and delivery events.
Key size/weight condition	Check the current Yu-Pack size and weight rules on Japan Post before shipping.
Included protection/extra service	Service conditions and compensation vary by declared value, service and optional handling.
Main limitation	Delivery windows and redelivery depend on local operations, address quality and recipient availability.

Yu-Packet

Small domestic packets and ecommerce lightweight items where mailbox or simplified delivery is suitable.

View all details for Yu-Packet

Service type	Domestic small packet.
Coverage	Japan domestic network.
Tracking level	Tracking included for common Yu-Packet use cases.
Key size/weight condition	Thickness, size and weight limits are service-specific and should be verified on Japan Post.
Included protection/extra service	Basic tracking; compensation and signature may not match parcel services.
Main limitation	Mailbox delivery and service restrictions may reduce proof-of-delivery detail.

Letter Pack

Flat-rate domestic document or small-item mailing using Japan Post Letter Pack products.

View all details for Letter Pack

Service type	Domestic prepaid mail product.
Coverage	Japan domestic network.
Tracking level	Trackable according to Letter Pack product conditions.
Key size/weight condition	Use only within the envelope and conditions sold by Japan Post.
Included protection/extra service	Delivery and handling differ by Letter Pack product type.
Main limitation	Not a substitute for insured parcel service when higher compensation is required.

EMS

Faster international postal shipping from Japan to destinations where EMS is available.

View all details for EMS

Service type	International express postal service.
Coverage	Destination-specific and subject to current acceptance and transport availability.
Tracking level	End-to-end postal tracking where destination data exchange supports it.
Key size/weight condition	Destination and content restrictions apply; verify on Japan Post’s international mail pages.
Included protection/extra service	EMS has service-specific compensation and conditions, subject to official rules.
Main limitation	Customs, destination delivery rules and service suspensions can override normal expectations.

International Parcel

Heavier or larger international Parcels via air, surface air lifted or surface routes where available.

View all details for International Parcel

Service type	International postal parcel.
Coverage	Varies by country, route and current Japan Post acceptance table.
Tracking level	Postal tracking with export, inbound and delivery scans depending on destination operator.
Key size/weight condition	Country-specific maximum weight, dimensions and prohibited items apply.
Included protection/extra service	Compensation and insured handling depend on service and destination.
Main limitation	Surface routes can have long visibility gaps and much longer transit times than air services.

Registered small packet / international registered mail

Lower-value international letter-post or small-packet shipments needing registration rather than express speed.

View all details for registered international mail

Service type	International registered postal item.
Coverage	Destination-specific and subject to acceptance restrictions.
Tracking level	Registration events and destination scans may be available but are not equivalent to courier-style step-by-step tracking.
Key size/weight condition	Letter-post and small-packet limits apply according to current rules.
Included protection/extra service	Registered handling and limited compensation are service-specific.
Main limitation	Delivery detail and speed depend heavily on destination postal practices.

Delivery Time

Service

Published delivery standard

Domestic Japan Post Parcels

Use Japan Post’s domestic delivery date search for origin and destination postcodes; standards vary by route and acceptance time.

View all details for domestic Japan Post delivery time

Business or calendar days	Route-specific; postal delivery operations and holidays affect results.
Guarantee status	Not a universal money-back guarantee; check the service terms for the chosen product.
Starts counting from	Acceptance scan and applicable cutoff time.
Main delay factors	Remote islands, weather, holidays, address issues, high volume, redelivery and delivery office workload.
Official source date/validity	Current Japan Post domestic delivery day search and service pages should be checked at mailing time.

EMS from Japan

Japan Post provides destination-specific delivery standards; actual delivery depends on customs and destination operator performance.

View all details for EMS delivery time

Business or calendar days	Destination-specific; many international tables use approximate postal service days rather than guaranteed customs-inclusive days.
Guarantee status	Delivery estimate, not a universal customs-inclusive guarantee.
Starts counting from	Posting and successful export processing from Japan.
Main delay factors	Flight capacity, destination customs, tax collection, missing invoice data, remote delivery area and service suspension.
Official source date/validity	Current Japan Post international mail delivery days and availability tables apply.

International parcel air / surface air lifted / surface

Air is generally faster than surface air lifted, and surface is the slowest; official availability and standards vary by destination.

View all details for international parcel delivery time

Business or calendar days	Destination and transport mode specific.
Guarantee status	Estimate or delivery standard unless the official service terms state otherwise.
Starts counting from	Posting, export processing and available transport assignment.
Main delay factors	Surface routing, customs, destination sorting, port congestion, weather and incomplete recipient data.
Official source date/validity	Current Japan Post international parcel and country availability pages apply.

Destination Country Delivery Times

Destination Country / Region

Estimated Delivery Time Range

United States

EMS 3–10 business days; air parcel 7–20; surface 45–90. Average about 9–18 days for air services.

View all details for United States

Primary Service Type	EMS, international parcel, registered small packet.
Average Delivery Days	Average approximately 9–18 days for air-tracked flows; surface can be much longer.
Last-Mile Partner / Handoff Carrier	USPS for postal last mile.
Customs & Clearance Tips	CBP and USPS may create a scan gap after arrival; taxes and inspections depend on declared value and contents.

Canada

EMS 4–12 business days; air parcel 8–24; surface 50–95. Average about 10–20 days for air services.

View all details for Canada

Primary Service Type	EMS, air parcel, registered mail.
Average Delivery Days	Average approximately 10–20 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Canada Post.
Customs & Clearance Tips	GST/HST, provincial tax and brokerage-like postal collection can delay delivery until payment instructions are completed.

Mexico

EMS 5–15 business days; air parcel 10–30; surface 55–100. Average about 14–28 days for air services.

View all details for Mexico

Primary Service Type	EMS and international parcel where available.
Average Delivery Days	Average approximately 14–28 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Correos de México / postal delivery network for postal items.
Customs & Clearance Tips	Incomplete recipient tax ID or invoice information may extend customs handling.

United Kingdom

EMS 3–9 business days; air parcel 7–18; surface 45–85. Average about 8–16 days for air services.

View all details for United Kingdom

Primary Service Type	EMS, air parcel, registered mail.
Average Delivery Days	Average approximately 8–16 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Royal Mail / Parcelforce Worldwide depending on service.
Customs & Clearance Tips	VAT and import charge payment requests can pause delivery; watch Royal Mail or Parcelforce tracking after UK arrival.

Germany

EMS 4–10 business days; air parcel 7–20; surface 45–90. Average about 9–18 days for air services.

View all details for Germany

Primary Service Type	EMS and international parcel.
Average Delivery Days	Average approximately 9–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Deutsche Post / DHL Paket for postal handoff.
Customs & Clearance Tips	EU VAT and customs data quality matter; destination tracking often becomes more detailed after Deutsche Post/DHL processing.

France

EMS 4–10 business days; air parcel 7–20; surface 45–90. Average about 9–18 days for air services.

View all details for France

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 9–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	La Poste / Colissimo / Chronopost depending on product mapping.
Customs & Clearance Tips	Import VAT, customs declarations and recipient contact details affect release and delivery notices.

Spain

EMS 4–12 business days; air parcel 8–24; surface 45–95. Average about 10–20 days for air services.

View all details for Spain

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 10–20 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Correos for postal last mile.
Customs & Clearance Tips	EU import VAT and Correos customs payment steps may be required before delivery.

Italy

EMS 5–14 business days; air parcel 9–28; surface 50–100. Average about 12–24 days for air services.

View all details for Italy

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 12–24 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Poste Italiane / SDA depending on product.
Customs & Clearance Tips	Customs and regional sorting can create multi-day gaps after arrival; VAT collection may be required.

Netherlands

EMS 4–10 business days; air parcel 7–18; surface 45–85. Average about 8–16 days for air services.

View all details for Netherlands

Primary Service Type	EMS, air parcel and registered mail.
Average Delivery Days	Average approximately 8–16 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	PostNL.
Customs & Clearance Tips	EU VAT and electronic customs data quality influence release speed.

Poland

EMS 5–14 business days; air parcel 9–28; surface 50–100. Average about 12–24 days for air services.

View all details for Poland

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 12–24 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Poczta Polska for postal handoff.
Customs & Clearance Tips	EU VAT and import documentation may create payment or document-request stops.

Sweden

EMS 4–12 business days; air parcel 8–22; surface 50–95. Average about 10–20 days for air services.

View all details for Sweden

Primary Service Type	EMS, air parcel and registered mail.
Average Delivery Days	Average approximately 10–20 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	PostNord.
Customs & Clearance Tips	VAT handling and recipient notification are common delay points after arrival.

Belgium

EMS 4–11 business days; air parcel 8–22; surface 45–90. Average about 9–18 days for air services.

View all details for Belgium

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 9–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	bpost.
Customs & Clearance Tips	EU import VAT and recipient data checks affect release.

Austria

EMS 4–11 business days; air parcel 8–22; surface 45–90. Average about 9–18 days for air services.

View all details for Austria

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 9–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Österreichische Post.
Customs & Clearance Tips	EU VAT collection and import documentation can delay local delivery.

Switzerland

EMS 4–11 business days; air parcel 8–22; surface 45–90. Average about 9–18 days for air services.

View all details for Switzerland

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 9–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Swiss Post.
Customs & Clearance Tips	Import VAT and customs duty can apply even outside the EU; watch Swiss Post notices.

South Korea

EMS 2–7 business days; air parcel 5–14; surface 35–70. Average about 6–12 days for air services.

View all details for South Korea

Primary Service Type	EMS, air parcel and registered mail.
Average Delivery Days	Average approximately 6–12 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Korea Post.
Customs & Clearance Tips	Recipient customs code or personal clearance information may be required for merchandise.

China

EMS 3–10 business days; air parcel 7–20; surface 35–80. Average about 8–18 days for air services.

View all details for China

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 8–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	China Post / EMS China depending on service.
Customs & Clearance Tips	Customs declaration accuracy and recipient identification can affect import release.

Hong Kong

EMS 2–7 business days; air parcel 5–14; surface 30–65. Average about 5–12 days for air services.

View all details for Hong Kong

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 5–12 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Hongkong Post.
Customs & Clearance Tips	Urban delivery is usually faster than restricted-location delivery; watch for local delivery notices.

Taiwan

EMS 2–7 business days; air parcel 5–14; surface 30–65. Average about 5–12 days for air services.

View all details for Taiwan

Primary Service Type	EMS, air parcel and registered mail.
Average Delivery Days	Average approximately 5–12 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Chunghwa Post.
Customs & Clearance Tips	Personal import rules and recipient contact data affect clearance notifications.

Singapore

EMS 2–7 business days; air parcel 5–14; surface 30–65. Average about 5–12 days for air services.

View all details for Singapore

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 5–12 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Singapore Post.
Customs & Clearance Tips	GST and permit rules may apply to merchandise; postal scans may resume after import processing.

Malaysia

EMS 3–10 business days; air parcel 7–20; surface 35–75. Average about 8–18 days for air services.

View all details for Malaysia

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 8–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Pos Malaysia.
Customs & Clearance Tips	Tax collection and restricted-item checks can delay the first domestic scan.

Thailand

EMS 3–10 business days; air parcel 7–20; surface 35–75. Average about 8–18 days for air services.

View all details for Thailand

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 8–18 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Thailand Post.
Customs & Clearance Tips	Merchandise declarations and recipient contact details are important for customs communication.

India

EMS 5–15 business days; air parcel 10–30; surface 50–100. Average about 14–28 days for air services.

View all details for India

Primary Service Type	EMS and international parcel.
Average Delivery Days	Average approximately 14–28 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	India Post.
Customs & Clearance Tips	KYC, duty assessment and regional sorting can extend delivery after arrival.

Philippines

EMS 4–14 business days; air parcel 9–28; surface 45–95. Average about 12–25 days for air services.

View all details for Philippines

Primary Service Type	EMS, parcel post and registered mail.
Average Delivery Days	Average approximately 12–25 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	PHLPost for postal items.
Customs & Clearance Tips	Import tax handling and regional delivery can produce post-arrival visibility gaps.

Indonesia

EMS 4–14 business days; air parcel 9–28; surface 45–95. Average about 12–25 days for air services.

View all details for Indonesia

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 12–25 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Pos Indonesia.
Customs & Clearance Tips	Tax ID, declared value and recipient payment steps can affect release timing.

Australia

EMS 4–12 business days; air parcel 8–24; surface 45–90. Average about 10–20 days for air services.

View all details for Australia

Primary Service Type	EMS, air parcel and registered mail.
Average Delivery Days	Average approximately 10–20 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Australia Post.
Customs & Clearance Tips	Biosecurity checks for food, wood, plant or animal products can delay or stop delivery.

New Zealand

EMS 4–12 business days; air parcel 8–24; surface 45–90. Average about 10–20 days for air services.

View all details for New Zealand

Primary Service Type	EMS, international parcel and registered mail.
Average Delivery Days	Average approximately 10–20 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	NZ Post.
Customs & Clearance Tips	Biosecurity and GST assessment can add time before domestic delivery.

Brazil

EMS 7–20 business days; air parcel 14–40; surface 60–120. Average about 20–35 days for air services.

View all details for Brazil

Primary Service Type	EMS and international parcel where available.
Average Delivery Days	Average approximately 20–35 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Correios.
Customs & Clearance Tips	CPF/CNPJ, import tax assessment and Correios payment steps are frequent delay points.

Chile

EMS 6–18 business days; air parcel 12–35; surface 55–110. Average about 18–32 days for air services.

View all details for Chile

Primary Service Type	EMS, air parcel and registered mail.
Average Delivery Days	Average approximately 18–32 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	CorreosChile.
Customs & Clearance Tips	Customs and regional distribution after Santiago arrival can produce long gaps.

United Arab Emirates

EMS 4–12 business days; air parcel 8–24; surface 45–90. Average about 10–20 days for air services.

View all details for United Arab Emirates

Primary Service Type	EMS and international parcel.
Average Delivery Days	Average approximately 10–20 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Emirates Post for postal items.
Customs & Clearance Tips	Recipient phone number and PO box or address precision are important for final delivery.

Saudi Arabia

EMS 5–15 business days; air parcel 10–30; surface 50–100. Average about 14–28 days for air services.

View all details for Saudi Arabia

Primary Service Type	EMS and parcel post where available.
Average Delivery Days	Average approximately 14–28 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	Saudi Post / SPL for postal items.
Customs & Clearance Tips	Recipient national address, phone number and duty/tax handling affect delivery speed.

South Africa

EMS 7–20 business days; air parcel 14–40; surface 60–120. Average about 20–35 days for air services.

View all details for South Africa

Primary Service Type	EMS and international parcel where available.
Average Delivery Days	Average approximately 20–35 days for air-tracked flows.
Last-Mile Partner / Handoff Carrier	South African Post Office / EMS South Africa depending on service.
Customs & Clearance Tips	Customs and local distribution backlogs can create extended post-arrival gaps.

The country table is a planning benchmark for Japan-origin postal shipments based on common international postal routing patterns and observed tracking behavior. It is not an official Japan Post commitment; always check Japan Post service availability, delivery-day tools and current service alerts before mailing.

Common Tracking Problems and Solutions

Most Japan Post tracking problems fall into three categories: the number is not a valid postal tracking number, the item is between scan points, or the shipment needs action from the recipient, sender, customs office or destination postal operator.

Problem & Solution

Problem/status shown

Likely cause

Tracking number invalid

Typing error, order number entered, unsupported service or number not yet active.

View all details for invalid Japan Post tracking number

Check first	Remove spaces and hyphens, confirm S10 country code, and compare with the receipt or seller email.
Immediate action	Ask the sender for the postal tracking number if you only have an order reference.
When to escalate	If the sender confirms Japan Post acceptance but no official result appears after normal system posting time.
Who to contact	Sender or seller first; Japan Post if you are the sender or have the official receipt.

No tracking after seller says shipped

Label or order may be created before physical handover to Japan Post.

View all details for no first scan

Check first	Look for a Japan Post “Posting” or “Acceptance” event.
Immediate action	Ask the seller whether the item was actually posted or only prepared for dispatch.
When to escalate	When the seller cannot provide acceptance proof or receipt after the promised dispatch date.
Who to contact	Seller or shipper, because Japan Post cannot investigate a shipment it has not accepted.

Long time no update after dispatch from Japan

International line-haul and destination-post first scan gap.

View all details for international visibility gap

Check first	Check Japan Post service alerts, destination-post tracking and whether the route is air, surface air lifted or surface.
Immediate action	Wait for destination arrival scans unless official inquiry conditions are met.
When to escalate	Use Japan Post’s official investigation/inquiry process according to service and country conditions rather than a fixed universal day count.
Who to contact	Sender for Japan-origin international inquiries; destination post if a local notice or customs request appears.

Stuck in customs

Import review, duty/tax assessment, missing invoice data or prohibited/restricted content check.

View all details for customs delay

Check first	Destination carrier tracking, customs notice, email/SMS payment request and declared-content accuracy.
Immediate action	Recipient should follow destination customs or postal instructions; sender should provide invoice details if requested.
When to escalate	If the destination carrier requests documents, payment is not processed, or customs indicates a problem with contents.
Who to contact	Destination postal operator or customs authority for import actions; seller for commercial invoice support.

Attempted delivery / absent

Recipient was unavailable, signature/payment was required, or delivery access failed.

View all details for attempted Japan Post delivery

Check first	Attempted-delivery notice number, delivery office, storage deadline and redelivery options.
Immediate action	Request redelivery or arrange pickup through the local official channel.
When to escalate	Before the storage period expires or if the notice details do not match your address.
Who to contact	Local delivery office or destination postal operator shown on the notice.

Address error

Incomplete apartment, postal code mismatch, wrong recipient name or inaccessible location.

View all details for address problems

Check first	Order address, postal code, building name, phone number and recipient name.
Immediate action	Recipient should contact the local delivery office if allowed; sender should confirm whether address correction is possible.
When to escalate	Immediately after an address-related exception because return can begin quickly.
Who to contact	Local delivery carrier and seller/shipper; 17TRACK cannot edit shipment addresses.

Delivered but not received

Delivered to mailbox, reception, family member, parcel locker, neighbor, wrong location or scan correction issue.

View all details for delivered but not received

Check first	Mailbox, parcel locker, entrance, front desk, family, neighbors, delivery photo or proof of delivery where available.
Immediate action	Contact the local delivery office quickly with the tracking number and delivery time.
When to escalate	If the delivery office cannot locate the item or confirms a misdelivery investigation is needed.
Who to contact	Recipient contacts local delivery office; seller or sender may need to start a formal postal inquiry or ecommerce refund process.

Lost or damaged

Possible loss, damage, missing contents or packaging failure during postal handling.

View all details for lost or damaged Japan Post shipments

Check first	Service type, compensation eligibility, photos, packaging, contents, receipt, value proof and latest scan.
Immediate action	Preserve packaging and contents; do not discard damaged materials before carrier inspection.
When to escalate	According to Japan Post’s official inquiry, investigation and compensation rules for the chosen service.
Who to contact	Sender for postal claim initiation in many international cases; recipient may support with photos and inspection evidence.

Return to sender

Storage expired, customs refused release, address failed, recipient refused, or prohibited item issue.

View all details for returned Japan Post items

Check first	Return reason, local notice, customs decision and whether pickup/redelivery time has passed.
Immediate action	Recipient should contact the seller; sender should wait for return arrival and review the postal reason before reshipping.
When to escalate	If the return reason is incorrect or the item is high value and eligible for investigation.
Who to contact	Seller/shipper for refund or reshipment; Japan Post or destination post for postal investigation if eligible.

International Shipping, Customs and Carrier Handoffs

For international postal items, Japan Post usually controls acceptance, domestic origin processing and export from Japan. After export, a destination postal operator, customs authority or transport partner may hold the item while the same tracking number remains in use.

International Flow

Stage

Typical tracking event

Origin posting in Japan

Posting / Acceptance.

View all details for origin posting

Physical custodian/responsible entity	Japan Post.
What is happening	The parcel or mail item is accepted and entered into Japan Post’s network.
Can the tracking number change?	Usually no for postal S10 items; the JP-ended number remains the key identifier.
Normal visibility gap	Short gap until sorting or exchange office processing.
What the customer should do	Sender keeps the receipt and confirms customs declaration accuracy.

Export processing

Arrival at outward office of exchange.

View all details for export processing

Physical custodian/responsible entity	Japan Post and export/security processing entities where applicable.
What is happening	The item is prepared for outbound international dispatch and data exchange.
Can the tracking number change?	Normally no; internal dispatch or bag identifiers may exist but are not consumer tracking numbers.
Normal visibility gap	Hours to several days depending on route and flight capacity.
What the customer should do	Check service alerts if the status remains unchanged longer than expected for the selected route.

Export dispatch and line-haul

Dispatch from outward office of exchange.

View all details for line-haul handoff

Physical custodian/responsible entity	Transport carrier, airline, postal dispatch network and destination exchange partner.
What is happening	The item is between Japan and the destination country or a transit exchange.
Can the tracking number change?	Postal number usually remains the same; destination operator may add an internal number not always shown to consumers.
Normal visibility gap	Common scan gap until the destination exchange office or customs scans the item.
What the customer should do	Track with both Japan Post and 17TRACK; avoid assuming loss during a normal international scan gap.

Destination exchange arrival

Arrival at inward office of exchange.

View all details for destination exchange arrival

Physical custodian/responsible entity	Destination postal operator and import processing facility.
What is happening	The item has reached the destination country’s postal import gateway.
Can the tracking number change?	The S10 number usually remains searchable; local references may appear on notices.
Normal visibility gap	Gaps may occur before customs presentation, release or domestic sorting.
What the customer should do	Use destination-post tracking for local notices and customs payment instructions.

Import customs

Held by customs / presented to customs / import customs cleared.

View all details for import customs

Physical custodian/responsible entity	Customs authority, destination postal operator and recipient when documents or payment are requested.
What is happening	Contents, value, restrictions and taxes are reviewed according to destination law.
Can the tracking number change?	Usually no, but customs notices can reference local case or payment numbers.
Normal visibility gap	No universal clearance time; delays vary by destination and item type.
What the customer should do	Respond to official requests only through the destination carrier or customs channel.

Last-mile delivery

Processing at delivery office / Out for delivery / Delivered / Attempted delivery.

View all details for last-mile delivery

Physical custodian/responsible entity	Destination postal operator outside Japan, or Japan Post for inbound items delivered in Japan.
What is happening	The item is sorted to a local delivery unit, delivered, held for pickup or returned after failure.
Can the tracking number change?	Normally the postal number remains valid; local notices may have a separate redelivery or pickup number.
Normal visibility gap	Short gap before delivery route scan; longer if address, customs payment or pickup is pending.
What the customer should do	Follow local redelivery, pickup and duty-payment instructions; contact the local delivery office for delivery issues.

Delivery Management and Post-shipment Options

Japan Post post-shipment options depend on whether the item is domestic, international outbound from Japan or inbound to Japan. Redelivery and pickup actions usually require the tracking number plus the attempted-delivery notice information.

Delivery Management

Option

Who can request

Redelivery request in Japan

Recipient or authorized person using the delivery notice and tracking information.

View all details for Japan Post redelivery

Eligibility	Items with an attempted-delivery notice and still within the local storage period.
Deadline/available stage	After attempted delivery and before return or storage expiry.
Fee	Check the official redelivery page for current service conditions.
Guaranteed?	Not guaranteed if the item has already been returned, the address is invalid or service conditions prevent redelivery.
Official action link	Japan Post redelivery request

Post office pickup after notice

Recipient with valid notice, identification where required and tracking details.

View all details for post office pickup

Eligibility	Items held at a designated Japan Post office or destination postal outlet.
Deadline/available stage	During the holding period stated on the notice or local rules.
Fee	Current fee, if any, depends on service and local rules.
Guaranteed?	Only while the item is still held and identity or authorization requirements are met.
Official action link	Japan Post receiving services

Delivery date or time request

Sender at mailing for eligible domestic parcel services, and recipient for redelivery scheduling where offered.

View all details for delivery schedule requests

Eligibility	Service-specific; common for certain domestic parcel products but not every mail class.
Deadline/available stage	At shipment creation or during redelivery scheduling depending on option.
Fee	Check current Japan Post service rules.
Guaranteed?	Subject to service conditions, weather, address access and operational exceptions.
Official action link	Japan Post Yu-Pack service information

Address change or forwarding

Recipient or household through official forwarding procedures; sender may need to correct commercial shipment data before mailing.

View all details for address forwarding

Eligibility	Japan domestic address-change forwarding rules apply; international and already-dispatched items have stricter limits.
Deadline/available stage	Before delivery attempt or through registered forwarding arrangements where applicable.
Fee	Check current Japan Post relocation and forwarding rules.
Guaranteed?	Not guaranteed for all mail classes, addresses or already-returning items.
Official action link	Japan Post change of address / forwarding

Lost, Damaged, Claims, Insurance and Refunds

A tracking inquiry, postal investigation, compensation claim, postage refund and ecommerce refund are different processes. Japan Post can investigate eligible postal items and apply official compensation rules, while a marketplace seller controls order refunds under the sales contract.

Claims and Refunds

Process

Use when

Tracking inquiry / investigation

Use when tracking stops, delivery is disputed, or an international postal item may be delayed or missing.

View all details for Japan Post tracking inquiry

Who files	Usually the sender for Japan-origin international mail; recipients may provide evidence and contact the destination operator for local delivery issues.
Earliest/latest filing time	Official filing windows vary by service and country; check Japan Post’s current inquiry and compensation pages before filing.
Required evidence	Tracking number, mailing receipt, posting date, sender and recipient addresses, contents, value and latest tracking event.
Possible outcome	Location update, delivery confirmation, return confirmation, investigation result or request for more evidence.
Official link	Japan Post international mail FAQ and inquiries

Damage or missing contents report

Use when the delivered item or contents are damaged or missing and the service may include compensation.

View all details for damaged Japan Post items

Who files	Sender or recipient depending on service, delivery country and required inspection procedure.
Earliest/latest filing time	Report promptly and follow official service-specific deadlines; do not rely on a single universal period.
Required evidence	Photos, packaging, contents, receipt, invoice, value proof and delivery condition record.
Possible outcome	Inspection, compensation under service limits, denial if packing or prohibited-content rules were violated, or request for additional documents.
Official link	Japan Post international insurance information

Postage refund or service fee issue

Use when official conditions allow a refund or correction of postal charges.

View all details for Japan Post postage refund issues

Who files	Usually the person who paid postage or the account holder.
Earliest/latest filing time	Depends on product terms and whether the item was accepted, cancelled, returned or undeliverable.
Required evidence	Receipt, label, payment proof, tracking number and explanation of the refund basis.
Possible outcome	Refund, correction, rejection or direction to another process.
Official link	Japan Post contact and inquiry channels

Marketplace refund or replacement

Use when you bought goods from a seller and need a refund, replacement or buyer-protection decision.

View all details for ecommerce refunds involving Japan Post

Who files	Buyer files with the marketplace or seller; seller may file a postal claim separately if eligible.
Earliest/latest filing time	Marketplace policy controls buyer-protection deadlines.
Required evidence	Order number, tracking record, photos, messages, delivery dispute evidence and value proof.
Possible outcome	Refund, replacement, denial, seller investigation or carrier claim by the merchant.
Official link	Use the marketplace or seller support portal; 17TRACK cannot approve ecommerce refunds.

Shipping Restrictions and Special Handling

Japan Post restrictions depend on domestic law, international postal rules, airline safety rules and destination-country import law. A restricted or prohibited item can be delayed, returned, confiscated or excluded from compensation.

Shipping Restrictions

Customer Service

For the fastest resolution, contact the party that currently controls the shipment: Japan Post for domestic Japan events and Japan-origin posting questions, the destination postal operator for local customs or delivery notices outside Japan, and the seller for order refunds or missing dispatch proof.

Customer Service

Channel

Verified contact/link

Official tracking

Japan Post Track & Trace Service

View all details for Japan Post official tracking

Best for	Checking latest official Japan Post events and international postal events shared to Japan Post.
Region/language	Japan Post site; English interface is available for tracking.
Hours and time zone	Online service; maintenance may occur.
Information to prepare	Tracking number exactly as printed on receipt, label or seller notice.
Important limitation	Tracking page does not approve redelivery, refunds or compensation by itself.

Redelivery request

Japan Post redelivery request form

View all details for redelivery customer service

Best for	Scheduling redelivery after an attempted delivery in Japan.
Region/language	Japan domestic delivery; Japanese pages may provide the fullest function.
Hours and time zone	Online availability depends on system maintenance and local delivery office rules.
Information to prepare	Attempted-delivery notice number, tracking number, delivery address and preferred redelivery date/time where offered.
Important limitation	Cannot be used after return processing or outside eligibility conditions.

Post office locator

Japan Post office search

View all details for Japan Post office locator

Best for	Finding the local post office for pickup, inquiry, mailing or delivery notice handling.
Region/language	Japan domestic locations.
Hours and time zone	Check each office listing for current hours.
Information to prepare	Postal code, address, delivery notice, tracking number and identification if picking up.
Important limitation	Office hours and services vary by location.

General inquiries

Japan Post contact Us

View all details for Japan Post general inquiries

Best for	Official questions about postal services, international mail, domestic delivery and complaint routing.
Region/language	Japan Post official contact channels; language support varies by channel.
Hours and time zone	Use the official contact page for current hours and channel availability.
Information to prepare	Tracking number, sender and recipient address, posting date, service type, latest scan, contents, value proof and photos if damaged.
Important limitation	Japan Post may direct international local-delivery issues to the destination postal operator after handoff.

Ecommerce and Business Tracking

Ecommerce teams shipping with Japan Post should separate consumer tracking, official postal systems and multi-carrier aggregation. This distinction matters because a seller may need Japan Post evidence for a claim, while buyers need easy cross-border visibility and exception explanations.

Developer/API Comparison

Option

Provider

Official consumer tracking page

Japan Post

View all details for Japan Post consumer tracking

Carrier coverage	Japan Post items and international postal data shared to Japan Post.
Primary use	Manual tracking and official event verification.
Authentication	No API authentication for the public web page.
Tracking/batch/webhook capability	Manual lookup; public page is not a webhook API.
Current developer documentation	Consumer Track & Trace page is public; current open public tracking API documentation was not confirmed.
Migration/deprecation note	Do not scrape or rely on undocumented endpoints; use official business channels or 17TRACK API for integration.

Official Japan Post business integration

Japan Post

View all details for Japan Post business integration

Carrier coverage	Japan Post services available to the contracted business account or shipping tool.
Primary use	Labeling, shipping administration, business mailing and service-specific account operations.
Authentication	Contract, account or tool-specific; public universal tracking API credentials are not confirmed here.
Tracking/batch/webhook capability	Depends on the specific Japan Post business system and contract terms.
Current developer documentation	Use Japan Post official business service pages and account documentation.
Migration/deprecation note	Confirm current documentation with Japan Post before development because postal tools and business systems may change.

Multi-carrier tracking API

17TRACK

View all details for 17TRACK API

Carrier coverage	Multiple carriers including postal, courier and ecommerce logistics carriers supported by 17TRACK.
Primary use	Bulk registration, standardized tracking visibility, multi-carrier recognition and exception monitoring.
Authentication	17TRACK API token in the 17token header.
Tracking/batch/webhook capability	Registration and tracking APIs are documented by 17TRACK; webhook or notification features depend on the selected API product and account setup.
Current developer documentation	17TRACK API documentation
Migration/deprecation note	Use the current 17TRACK v2.4 registration endpoint shown in the API documentation.

FAQ

1. How do I track my Japan Post package?

Enter the tracking number on the official Japan Post Track & Trace page or use 17TRACK to view available Japan Post and partner postal events.

2. Where can I find a Japan Post tracking number?

The tracking number is usually on the mailing receipt, shipping label, international postal label, attempted-delivery notice, seller email or marketplace shipment page.

3. What does a Japan Post tracking number look like?

International Japan Post numbers commonly follow the UPU S10 pattern such as EA ######### JP, CP ######### JP or RA ######### JP; domestic Japan Post numbers are usually numeric and printed on the receipt or label.

4. When will the first Japan Post tracking event appear?

The first strong physical event normally appears after Japan Post accepts the item, so a seller’s order confirmation or label preparation may appear before the package is actually posted.

5. Why is my Japan Post tracking not updating?

Japan Post tracking may stop temporarily while the item is between sorting offices, in international line-haul, waiting for destination-post arrival, or under customs review.

6. How long does Japan Post delivery take?

Japan Post delivery time depends on the service, route, acceptance time, destination, customs and current service availability; use Japan Post delivery-day tools and destination availability pages for the official planning reference.

7. What should I do after a Japan Post attempted-delivery notice?

Use the notice information to request redelivery or arrange pickup before the local storage period expires, and prepare identification if collecting from a post office.

8. What should I do if Japan Post says delivered but I did not receive the package?

Check the mailbox, parcel locker, reception desk, family members and neighbors first, then contact the local delivery office quickly with the tracking number and delivery time.

9. How do I report a lost or damaged Japan Post package?

Keep the receipt, packaging, photos, value proof and contents, then follow Japan Post’s official inquiry or compensation process for the exact service and country.

10. How do I contact Japan Post customer service?

Use Japan Post’s official contact page, redelivery page, post office locator or tracking page, and prepare the tracking number, service type, posting date, addresses and latest scan.

11. Why does a Japan Post international number still work after the package leaves Japan?

UPU S10 postal numbers are designed for cross-border postal exchange, so the same Japan-origin number can remain searchable when the destination postal operator receives and delivers the item.

12. Does Japan Post deliver inbound international mail in Japan?

Japan Post commonly acts as the destination postal operator for inbound international postal items delivered in Japan, even when the tracking number was issued by a foreign origin post.

13. Is arrival at an inward office of exchange the same as customs clearance?

No, arrival at an inward office of exchange means the item reached the destination postal import process; customs review, tax assessment and release may still be pending.

14. Can I infer a Japan Post service from the tracking number prefix alone?

You can sometimes identify a broad postal identifier family, such as EMS or registered international mail, but you should confirm the actual service through the label, receipt or official tracking result.

15. Can Japan Post change the delivery address after shipment?

Address changes after shipment are limited and service-specific, so the sender or recipient should contact the official Japan Post or destination-post channel as early as possible.

16. What is the difference between Japan Post tracking and 17TRACK tracking?

Japan Post tracking is the official carrier lookup, while 17TRACK is an independent multi-carrier platform that can aggregate available events across Japan Post and handoff carriers.

17. Can businesses track Japan Post shipments through an API?

A current open public Japan Post tracking API was not confirmed here; businesses can use official Japan Post business systems where contracted or use the 17TRACK API for multi-carrier tracking integration.

18. Who can file a Japan Post international inquiry?

For Japan-origin international mail, the sender is often the correct party to start the official postal inquiry, while the recipient should help with local notices, customs requests and delivery-dispute evidence.

Tracking API

// 1. Japan Post official tracking API
// Current public official Japan Post tracking API not confirmed.
// Use the official Japan Post Track & Trace web page or contracted Japan Post business documentation.
// Do not build production systems on undocumented or scraped endpoints.

// 2. 17TRACK API: register a Japan Post tracking number
// Documentation: https://api.17track.net/en/doc
// CARRIER_CODE: use the current 17TRACK carrier code for Japan Post from your 17TRACK account or carrier list.
// If the carrier code is not confirmed, keep CARRIER_CODE as a placeholder and let carrier auto-detection be handled according to 17TRACK API documentation.

curl -X POST "https://api.17track.net/track/v2.4/register" \
  -H "17token: YourKey" \
  -H "Content-Type: application/json" \
  -d '[{"number":"EA ######### JP","carrier":"CARRIER_CODE"}]'