Where can I find my Hong Kong Post tracking number?
A Hong Kong Post tracking number is a 13-character code built from two letters, nine digits and the country suffix HK, and it is printed on the posting receipt handed over at the counter, on the barcode label stuck to the item, on the Pos 460 Speedpost address pack, and in the dispatch message a seller sends once the parcel has been accepted. Which of those documents actually holds it depends on who paid the postage. A sender in Hong Kong keeps the counter receipt and the Certificate of Posting; a buyer overseas normally sees neither and takes the code from the seller instead. Ordinary letter post carries no number of any kind.
Which Hong Kong Post services carry a number, and which never do
Hongkong Post issues a traceable item number on six categories of mail and on nothing else. Its mail tracing guidance lists local mail other than CourierPost, local CourierPost mail, outward surface and air parcels together with registered and insured mail, Speedpost, returned outward mail that already carries an item number, and inward mail that carries an item number (Hongkong Post, Mail Tracing FAQ). Anything outside that list has no code to look for, however carefully the paperwork is searched.
Registration is the cheapest way to attach a number to a letter or packet. An extra registration fee of HK$15.5 per item is prepaid on top of the ordinary postage rate, and counter staff then affix a barcode label carrying the registered number onto the mail item itself (Hongkong Post, Registered Letter and Packet). Speedpost, the express product, is numbered from the moment its address pack is issued. Unregistered letters and packets sit outside the system entirely, which is the single most common reason a search ends with nothing, as tracking ordinary letters sets out in more detail.
The counter receipt and the Certificate of Posting
The posting receipt issued at a post office counter is the primary record for anyone who posted an item in person, and for local registered mail it stays usable for 5 months. Hongkong Post ties the whole enquiry process to that piece of paper rather than to the code alone.
Local registered items can be traced within 5 months after the day of posting. All enquiries and claims have to be supported by the Certificate of Posting and other relevant documents.
Hongkong Post, Frequently Asked Questions, Sending Mail, accessed July 2026.
The Certificate of Posting is a separate stamped document, requested at the counter rather than produced automatically. The registered mail page instructs senders to "Bring the letter / packet to a Post Office officer and get a Certificate of Posting for it", and describes the service as one where "The posting process is recorded and signature of receipt is required upon delivery". Both the receipt and the certificate show the same code that appears on the barcode label attached to the item, so either document is enough to start a trace.
Every document that carries the number, at a glance
Eight distinct documents can hold a Hong Kong Post item number, and only three of them ever reach the recipient. The table maps each channel to the place the code is printed and to the person who ends up holding it.
Document or channel | Where the code is printed | Services covered | Who holds it |
|---|---|---|---|
Post office counter receipt | Beside or beneath the barcode, matching the label on the item | Registered mail, local and outward parcels, insured mail | Sender |
Certificate of Posting | On the stamped record issued by the counter officer | Registered letters and packets | Sender |
Barcode label affixed by counter staff | On the face of the item, next to the address block | Registered mail | Recipient, once delivered |
Pos 460 Speedpost Multi-part Address Pack | On the pack itself, not among its 14 numbered declaration fields | Speedpost, EC Post, Economy Express | Sender keeps one part, one part travels with the item |
iPostal kiosk posting label | On the posting label printed alongside the postage label | Registered and other kiosk-eligible mail | Sender |
Post Now, My Speedpost or EC-Ship record | In the saved shipment record and on the label it generates | Speedpost and e-commerce consignments | Account holder |
Seller dispatch email or marketplace order page | Quoted as the shipment or tracking reference | Any trackable service bought by a seller | Buyer |
CN22 or CN23 customs declaration on the item | Printed or written on the declaration attached to the parcel | International parcels and packets | Recipient |
The three that reach the recipient are the barcode label, the customs declaration and the seller's dispatch message. Everything else stays with whoever paid the postage, which is why a buyer who cannot find a code is usually looking in the wrong place rather than holding an untracked item.
How to recognise the number once it turns up
A valid Hong Kong Post item number is exactly 13 characters long and ends in HK, and its eleventh character is a check digit rather than part of the serial. The format belongs to the Universal Postal Union S10 standard, which designated operators use for trackable mail worldwide, and the UPU publishes a validation tool for it.
The S10 Check Digit Validation Tool checks the validity of an S10, 13-character identifier by calculating the check digit in character position 11.
Universal Postal Union, Standards, accessed July 2026.
Under the same S10 convention the leading letter marks the service class. R opens a registered item, so RR123456789HK reads as registered mail, while E opens an EMS item, so EE123456789HK reads as a Speedpost consignment. The two letters are followed by nine digits and then the ISO country code of the operator that issued the code, which for Hongkong Post is always HK. A code that is longer, shorter, or ends in a different letter pair was not issued in Hong Kong. The wider mechanics of how identifiers are assigned and read are covered in what a tracking number is and how it works.
Where the number sits on a Speedpost consignment note
Speedpost items travel on the Pos 460, a Speedpost Multi-part Address Pack with 14 numbered fields, and none of those 14 fields is an item number field. The pack asks for the sender's full name, address, telephone number and email; the addressee's full name, address, city, postal code and country; the item category; importer references and tax or VAT identification; an insurance selection; the count of certificates, licences and invoices attached; a "detailed description for each article (eg: toy car, cotton shirt for men)"; the quantity of each article; the declared value with its currency; the net weight in kilograms; the HS tariff number and country of origin for commercial goods; and a dated signature (Hongkong Post, How to Fill Pos 460).
The consequence is that the code is read off the pack rather than written onto it. A Speedpost consignment therefore already carries its number before it is collected or dropped off, whether the item goes over a counter, into a scheduled pick-up, or into a post office drop-off point. Senders who prepare the form online through Post Now or through My Speedpost, which is limited to account customers, see the same code in the printed output and in the saved record.
iPostal kiosks and online posting records
iPostal self-service kiosks print the number without any counter interaction, and most of them operate 24 hours a day. Hongkong Post describes the kiosk as an "automated posting service that enables the public to post mail locally or to other destinations, purchase postage label and make postage enquiry", and states that after the transaction "the posting label and postage label will be printed for and ready for posting" (Hongkong Post, iPostal Kiosk). Registered Mail is among the mail types the kiosks accept, so a kiosk posting label stands in for a counter receipt.
Three online channels hold the same code inside an account record. Post Now is the general public posting form, My Speedpost is restricted to Speedpost account customers, and the EC-Ship platform serves e-commerce senders shipping in volume. In each case the code survives a lost printout, because the record stays in the account after the label has been produced and the item handed over. That makes an online posting record the most reliable place to recover a number issued weeks earlier.
Buyers who never bought the postage
A large share of the people looking for this code never posted anything, and for them it exists in exactly one place: the message the seller sends after handover. Order confirmations and dispatch notifications arrive as two separate messages, and only the second carries the 13-character postal code. Nothing is assigned at checkout, because the identifier comes into existence when the postage is bought, not when the order is placed.
Sellers on marketplaces such as AliExpress, Taobao, Temu, Shein, eBay and Amazon, along with Hong Kong retailers including HKTVmall, route parcels through Hongkong Post and its courier products, and they publish the code either in the dispatch email or on the order detail page inside the account. When only an order number is visible, the postal code has to be requested from the seller directly, because a shop reference returns nothing in any postal tracker. That request is worth making early, since how long Hong Kong Post takes to deliver sets the window inside which the code is still worth chasing.
Reading the number off the parcel itself
A recipient holding the physical item can read the code straight from the barcode label, which carries the registered number in human-readable characters beneath the bars. All 13 characters end in HK on any item that originated in Hong Kong. On international parcels the same code is normally repeated on the CN22 or CN23 customs declaration attached to the outside of the item, so a torn or scuffed barcode label is rarely fatal.
Once an item reaches the destination country the receiving postal operator adds its own labels and its own scans. The Hong Kong code stays valid and remains the only one that returns the Hongkong Post leg of the history, including the events recorded while an item was in customs clearance. Both legs of the journey appear in a single history on the Hong Kong Post tracking page.
Five codes that get mistaken for the item number
Five different references circulate around a single Hong Kong parcel, and only one of them resolves in a postal tracker. The distinction matters most to buyers, who often receive two or three of these codes with no explanation of which is which.
Code | Typical shape | Issued by | Returns Hongkong Post scans |
|---|---|---|---|
Hong Kong Post item number | 13 characters: two letters, nine digits, HK, for example RR123456789HK | Hongkong Post | Yes |
Marketplace order number | Digits only, in a format set by the shop platform | Seller platform | No |
Sender reference on an EC-Ship consignment | Free text chosen by the sender | Sender | No |
Payment or invoice number | Format set by the payment provider | Seller or payment provider | No |
Destination operator's own number | Format set by the receiving postal service | Destination postal operator | Only in that operator's tracker |
The quickest filter is the shape itself. Two letters, nine digits and HK is a Hong Kong postal identifier; anything else is a commercial reference belonging to a shop, a payment processor or a foreign carrier.
How long the number stays traceable
The code has a shelf life that varies by product: 5 months from the date of mailing for local mail, 3 months for Speedpost, and 6 months for inward mail, according to the Mail Tracing FAQ cited above. After those windows the record is no longer available for enquiry, so a code recovered from an old email may return nothing even though it was valid when issued.
Enquiries run through three channels: the Track and Trace section of the Hongkong Post website, the hotlines on 2921 2211 during staffed hours and 2921 2560 around the clock, and the Pos 28B enquiry form submitted by post, in person or by fax. Hongkong Post asks for supporting material alongside the code.
If possible a facsimile of the envelope or the address of the packet should be furnished with the enquiry.
Hongkong Post, Frequently Asked Questions, Sending Mail, accessed July 2026.
None of those three channels charges for a status check, and neither does the online tracker, a point covered in Hong Kong Post tracking being free.
When there is no number to find
Ordinary mail cannot be traced at all, because no item number is issued and no posting documentation is retained (Hongkong Post, Mail Tracing FAQ). A search of the envelope, the receipt and the seller's email produces nothing in that case, and no amount of contact with the operator changes it. The reference point for an unregistered local item is the published delivery standard rather than a scan history.
Ordinary small letters will be delivered on the next working day. Ordinary large letters and packets will be delivered within 2 working days.
Hongkong Post, Ordinary Mail, accessed July 2026.
For a future shipment the fix costs HK$15.5: registering an item attaches a barcode, a traceable number and a signature on delivery. For an item already in the network, the practical step is to check the shape of whatever code is available. Two letters, nine digits and HK can be entered directly into the tracker on this page to see the Hong Kong scans and the destination carrier's updates in one history; anything else means going back to the sender for the postal code.