SingPost tracking number example: format, prefixes, and what it ends with

A SingPost tracking number can look like this:

RA999999999SG

That is a Registered Service Singapore format. SingPost also shows examples such as RR99999999SG for Registered Service International and SM000000001SG for SmartPac.

So the quick clue is simple: many SingPost tracking numbers use two letters at the start, a block of numbers in the middle, and SG at the end.

If you already have a SingPost tracking number, paste it into the tracker on this page to check the latest status.

Quick answer

SingPost tracking number formats depend on the service used. A registered mail item, a SmartPac item, and a basic letter are not the same thing.

The examples above are safe samples. They show the format only. Do not paste them into a tracker and expect a shipment to appear.

What does a SingPost tracking number look like?

Most SingPost tracking examples are easy to recognize because they look like postal tracking numbers.

They often have this shape:

AA123456789SG

That means:

• two letters at the start
• numbers in the middle
• SG at the end

For example, RA999999999SG points to SingPost Registered Service Singapore. SM000000001SG is used by SingPost as a SmartPac delivery note example.

The prefix matters, but it does not tell the whole story. The same shipment may also move through another postal operator after it leaves Singapore, especially for international mail.

SingPost tracking number examples

Here are common SingPost examples you may see in receipts, seller emails, or shipping pages.

The SG ending is a useful clue because Singapore postal tracking numbers often use SG as the country code. Still, the safest check is to track the full number, not just the prefix.

What do SingPost tracking numbers start with?

SingPost tracking numbers can start with different letters depending on the service.

The most common examples are:

If your number starts with RA and ends with SG, it may be a SingPost Registered Service number. SingPost says this Registered Service Singapore number starts with RA, has nine digits, and ends with SG.

If your number starts with SM, check whether it came from a SmartPac delivery note or a SingPost SmartPac shipment.

Do SingPost tracking numbers end with SG?

Many SingPost examples end with SG.

You can see it in these samples:

RA999999999SG
RR99999999SG
SM000000001SG

SG points to Singapore in the postal tracking code. That said, not every number connected to a delivery in Singapore will necessarily end with SG. For example, an overseas seller may give you a tracking number issued by another postal administration or logistics company.

If the package is coming from another country to Singapore, the foreign registered service number may have a different format. In that case, confirm the number with the sender or the overseas postal operator.

How long is a SingPost tracking number?

There is no single length for every SingPost number.

The length depends on the service:

A mistake people make is counting only the digits. For postal tracking, the letters matter too. If your number ends with SG, copy the letters as part of the tracking number.

Registered Service Singapore tracking format

For Registered Service Singapore, SingPost says a tracking number is allocated when you post a registered mail item at a post office.

The format looks like this:

RA999999999SG

This number appears on the posting receipt. The sender or recipient can use it to verify the status of the mail item.

Registered Service is not the same as ordinary mail. It is a sign-for service, and SingPost says it can be tracked for selected countries. It is useful when the sender needs proof of posting and some delivery accountability.

There is a catch, though. Registered Service does not always show detailed scans at every step. If you are used to parcel tracking with frequent location updates, registered mail can feel slow or quiet.

Registered Service International tracking format

For Registered Service International, SingPost shows this example:

RR99999999SG

This number is used to verify the status of a registered article. You can usually find it on the posting receipt.

International registered mail can be a little frustrating because tracking depends on both SingPost and the postal administration in the destination country. SingPost says scan events may differ from post to post, and an update is shown only if the overseas postal administration provides it.

So if your item left Singapore and then stopped updating, that does not automatically mean it is lost. It may simply be in a country where the local postal operator does not send detailed scan updates back to SingPost.

SmartPac tracking number example

A SingPost SmartPac number can look like this:

SM000000001SG

SingPost uses that sample when explaining SmartPac enquiries. If the recipient does not receive the SmartPac, SingPost asks for the SmartPac delivery note number, the posting date, and the sender and recipient details.

The SM prefix is the easiest sign that the number may be linked to SmartPac. Keep the delivery note or confirmation email until the item is delivered, because that number is what you will need if you have to ask SingPost about the shipment.

Can you track SingPost Basic Mail?

No. SingPost says Basic Mail is not tracked and not traceable.

This matters because a lot of people search for a tracking number that was never created. If the sender used Basic Mail, there may be no tracking page, no scan history, and no delivery updates.

A simple way to check:

If tracking is important, ask the sender to use a tracked or registered service before the item is posted.

Why your SingPost tracking number is not updating

SingPost tracking can stop updating for several normal reasons.

Try these checks first:

1. Make sure you copied the full number, including the starting letters and the SG ending.
2. Remove spaces, dashes, and extra words from the tracking field.
3. Check whether you are using a store order number instead of a postal tracking number.
4. Wait for the first scan if the seller only created the label recently.
5. For international registered mail, remember that some destination countries do not provide detailed scan updates.

Registered mail is not always scanned at every stage. For overseas registered mail, SingPost says it may show scan status up to the despatch of the item from Singapore, but there may be no detailed scan movement in the destination country.

That is annoying, but it is normal for some postal routes.

Can SingPost trace an item without a tracking number?

Usually, no.

SingPost says it is unable to trace mail without a tracking number. If you do not have the number, check these places:

• the posting receipt
• the SmartPac delivery note
• the shipping confirmation email
• your store order page
• the seller's message or invoice
• the marketplace shipment details

If you are the recipient, ask the sender for the full number. If the sender cannot provide one, the item may have been sent by Basic Mail or another untracked service.

SingPost tracking number vs order number

A tracking number follows the mail item. An order number follows the purchase.

They are not the same.

If a number does not end with SG and does not look like a postal tracking number, it may still be valid, but it might belong to another carrier. Try the full number in a universal tracker or ask the seller which carrier was used.

How to track a SingPost package

Use the full tracking number exactly as it appears on the receipt or shipping email.

1. Copy the full tracking number.
2. Include the letters at the start and end.
3. Paste it into the tracking box.
4. Choose SingPost or Singapore Post if the tracker asks for a carrier.
5. Check the latest scan, delivery status, and any handoff updates.

If the item is international, check again later if it has recently left Singapore. Some postal updates only appear after the destination operator scans the item.

Common SingPost tracking statuses

Status wording can vary, but these are the updates people usually ask about.

Do not panic if a registered item has fewer scans than a courier parcel. SingPost registered mail can have limited online tracking, especially outside Singapore.

FAQ

What is an example of a SingPost tracking number?

Common SingPost tracking number examples include RA999999999SG, RR99999999SG, and SM000000001SG. These are sample formats, not real shipments.

What do SingPost tracking numbers start with?

They can start with different prefixes. RA is used in SingPost's Registered Service Singapore example, RR appears in the Registered Service International example, and SM appears in the SmartPac example.

Do SingPost tracking numbers end with SG?

Many SingPost examples end with SG, including RA999999999SG, RR99999999SG, and SM000000001SG. But an item coming from overseas may use a foreign tracking format that does not end with SG.

How many digits are in a SingPost tracking number?

It depends on the service. For Registered Service Singapore, SingPost describes a number that starts with RA, has nine digits, and ends with SG. Other services can use different formats.

Can I track SingPost Basic Mail?

No. SingPost says Basic Mail is not tracked and not traceable. If there is no tracking number, the item may have been sent as Basic Mail.

Why is my SingPost tracking number not updating?

The item may not have been scanned again yet, or the destination country may not provide detailed scan updates. SingPost says Registered Service does not always provide detailed online tracking at every stage.

Can SingPost trace my item without a tracking number?

SingPost says it is unable to trace mail without a tracking number. Ask the sender for the full number or check your receipt, delivery note, email, or order page.

Are the SingPost examples on this page real tracking numbers?

No. They are masked examples used to show the format. They do not belong to real packages.

Sources

• SingPost Registered Service Singapore
• SingPost Registered Service International
• SingPost Track & Trace FAQ
• SingPost Track & Trace
• SingPost Tracked Services