Tracking number examples by carrier: UPS, USPS, FedEx, DHL, SingPost, China Post, Cainiao, and OnTrac

Tracking numbers are not all built the same way. UPS numbers often look nothing like USPS numbers. DHL Express can be a plain 10 digit number. Postal shipments from China or Singapore often end with a country code like CN or SG.

This page is a quick reference. Use it to recognize the most common patterns before you track a package.

One warning first: a format is a clue, not proof. Some carriers share similar numeric lengths, and marketplaces sometimes create their own logistics IDs before the parcel reaches the final carrier.

Quick comparison table

These are safe examples. They show the shape of a tracking number only. They are not real shipments.

If you want the detailed breakdown for a specific carrier, start with these guides:

UPS tracking number example

A common UPS tracking number looks like this:

1Z9999999999999999

The 1Z prefix is the big giveaway. UPS says most UPS tracking numbers begin with 1Z and are 18 characters long.

UPS can also use other identifiers, including shorter numeric numbers, numbers that start with T, delivery notice numbers, freight references, and UPS Mail Innovations IDs.

Read the full guide: UPS tracking number example

USPS tracking number example

A common USPS Tracking number looks like this:

9400 1000 0000 0000 0000 00

USPS tracking numbers are often long numeric codes. Domestic examples are usually shown in groups, but the spaces are only for readability.

USPS also uses letter-based international formats:

CP 000 000 000 US

Read the full guide: USPS tracking number format

FedEx tracking number example

A FedEx tracking number is usually numeric.

Common examples look like this:

999999999999
999999999999999

FedEx numbers can vary by service and label type. In everyday ecommerce, people most often see 12 digit or 15 digit FedEx tracking numbers. Some services, freight labels, and barcode strings can be longer.

Do not assume a plain 12 digit number is FedEx just because it is 12 digits. UPS, DHL, freight carriers, marketplaces, and local couriers can also use numeric IDs.

DHL tracking number example

DHL depends heavily on the DHL service used.

For DHL Express, the cleanest example is:

1234567890

DHL says DHL Express waybill numbers consist of 10 digits. DHL eCommerce can look different and may include letters.

This is where people get tripped up. A DHL Express waybill and a DHL eCommerce number are not the same format, even though both belong to DHL-branded services.

SingPost tracking number example

A SingPost Registered Service number can look like this:

RA999999999SG

SingPost also shows this international registered example:

RR99999999SG

And for SmartPac, SingPost uses this example:

SM000000001SG

Read the full guide: SingPost tracking number example

China Post tracking number example

A common China Post style postal tracking number looks like this:

RS123456789CN

The usual shape is:

AA123456789CN

That means two letters, nine digits, and CN at the end. The first letter can hint at the service type. For example, registered mail often starts with R, EMS often starts with E, and some ordinary or unregistered formats start with U.

One thing to remember: not every package from China is China Post. AliExpress, marketplaces, and sellers may use Cainiao, Yanwen, 4PX, DHL eCommerce, local postal partners, or another carrier before the parcel reaches your country.

Cainiao tracking number example

Cainiao is trickier than a normal carrier page because Cainiao shipments can move through partner networks. The number you see on a marketplace order may not look like a classic postal code at first.

Common marketplace-style examples can look like this:

LP12345678901234
AECA1234567890RU2

Cainiao's official tracking page lets users enter up to 100 tracking numbers in one search, but it does not publish one universal tracking number format for every route. That makes sense. Cainiao handles many logistics lines, and the final delivery carrier can change by country.

If a Cainiao number stops updating, check whether the order page shows a second tracking number. Many international ecommerce packages get a new local carrier scan after customs or handoff.

OnTrac tracking number example

OnTrac tracking numbers can start with several prefixes. OnTrac says your tracking number will begin with C, D, 1LS, LS, LX, or BN.

Examples:

C12345678901234
D10012345678901
1LS123456789012

If you do not have the tracking number, OnTrac tells customers to contact the retailer. That is usually the right move for ecommerce orders, because the store controls the shipment data before OnTrac receives the package.

How to guess the carrier from a tracking number

You can often make a good guess from the first two or three characters.

The safest way is still to track the full number. Tracking numbers are identifiers, not universal barcodes with one public decoding rule.

Why a tracking number example may not work

The examples on this page are intentionally fake. They are here to show the format.

If your real tracking number does not work, one of these is usually the reason:

• the label was created, but the carrier has not scanned the package yet
• the seller gave you an order number instead of a tracking number
• the number was copied with missing characters
• the package changed carriers after an international handoff
• the shipping service has limited tracking
• the carrier system has not updated yet

A boring delay is more common than a lost package. Give the first scan a little time, especially for weekend labels, marketplace orders, and international shipments.

Where to find the tracking number

Check these places first:

• shipping confirmation email
• order details page from the store
• carrier receipt
• package label, usually near or under the barcode
• marketplace app, such as Amazon, eBay, AliExpress, or Shopify store account
• SMS or email from the seller

Be careful with messages that ask you to pay a surprise delivery fee. A real-looking tracking number does not make a link safe. If the message feels strange, copy the number and search it directly on the carrier site or on a trusted parcel tracker.

FAQ

What is a tracking number example?

A tracking number example is a safe sample that shows what a carrier's tracking number can look like. For example, a common UPS sample is 1Z9999999999999999, while a common USPS sample is 9400 1000 0000 0000 0000 00.

Can I identify the carrier from a tracking number?

Sometimes. A number starting with 1Z is usually UPS, many USPS domestic numbers start with 92, 93, or 94, and many postal international numbers use two letters, nine digits, and a country code. But formats can overlap, so the safest check is to search the full number in a tracking tool.

Are the tracking numbers on this page real?

No. The examples on this page are masked format samples. They show structure only. They do not belong to real packages.

Which carrier has tracking numbers that start with 1Z?

UPS is the carrier most commonly associated with tracking numbers that start with 1Z. UPS says most UPS tracking numbers begin with 1Z and are 18 characters long.

Which carrier uses tracking numbers that end with CN?

Tracking numbers that end with CN are often associated with postal shipments from China, including China Post and some marketplace logistics routes. A typical example is two letters, nine digits, and CN at the end.

Which carrier uses tracking numbers that end with SG?

Tracking numbers that end with SG are often associated with Singapore postal shipments, including SingPost registered mail and SmartPac examples.

Why does my tracking number not match any format?

It may be an order number, reference number, local delivery number, marketplace logistics ID, or a carrier-specific format that is not listed. Remove spaces, check for copied mistakes, and try tracking it with the carrier or the seller.

Sources

• UPS tracking support
• UPS help: most tracking numbers begin with 1Z
• USPS tracking sample numbers
• FedEx Track API documentation
• DHL Express air waybill guide
• DHL Freight tracking FAQ
• SingPost Registered Service Singapore
• SingPost Registered Service International
• SingPost Track Items FAQ
• Cainiao Global Express Tracking
• OnTrac FAQ