A UPS tracking number is the code UPS assigns to a shipment so it can be followed through the network. The most common format is 18 characters long and starts with “1Z”, but UPS also issues 12-digit, 9-digit, and “T” plus 10-digit numbers. You’ll find it on the shipping label, the sender’s confirmation email, or your drop-off receipt.
This guide covers what the number looks like, where to find it, and what to do when it doesn’t work. For checking a package’s progress and reading each status, see our step-by-step UPS tracking guide.
What Does a UPS Tracking Number Look Like?
UPS’s tracking help page lists four standard package formats. Knowing them helps you spot a typo, and it also tells you whether a number really belongs to UPS.
| Format | Length | Example pattern | How to recognize it |
|---|---|---|---|
| 1Z number | 18 characters | 1Z9999999999999999 | Starts with “1Z”; the most common UPS package format |
| 12-digit number | 12 digits | 999999999999 | Numbers only, no letters |
| T number | 11 characters | T9999999999 | The letter T followed by 10 digits |
| 9-digit number | 9 digits | 999999999 | Numbers only, shortest standard format |
UPS will also track several other kinds of numbers, from 7 to 20 characters long, mostly for freight. These include PRO numbers for surface freight, house air waybills for air freight, house bills of lading for ocean freight, and delivery order or sub-PRO numbers for LTL and truckload shipments. A UPS Delivery Notice left at your door has its own 12-digit reference number, and you can track that too.
What Do the Parts of a 1Z Tracking Number Mean?
A 1Z tracking number is usually explained as four parts in a fixed order. UPS doesn’t break the format down on its tracking help page, so treat this as a guide to reading the number, not something to calculate with.
- “1Z”: marks it as a standard UPS package number.
- The next 6 characters: the sender’s UPS account, also called the shipper number.
- The next 2 digits: a code for the service level, such as Ground or an air service.
- The last 8 digits: the package’s own reference number, ending in a check digit that helps catch typing errors.
Every package from the same account shares the first eight characters. That’s why a seller’s numbers often look almost identical. A single typo usually makes a 1Z number invalid instead of pointing to someone else’s package, because the check digit no longer matches.
Where Do You Find Your UPS Tracking Number?
Where to look depends on whether you sent the package or you’re receiving it.
If you’re receiving a package
- Shipping confirmation email or text from the seller, usually labeled “Tracking number” with a link to ups.com.
- Your order history in the retailer’s account page.
- UPS My Choice: members see incoming UPS packages addressed to them in a dashboard, often before the seller sends a tracking number.
- A UPS Delivery Notice on your door after a missed attempt. Our guide to the UPS InfoNotice explains how to use that number to reschedule or pick up.
If you sent the package
- The shipping label, printed under the large barcode.
- Your drop-off receipt from a UPS Store, UPS Customer Center, or Access Point location.
- The shipment history on ups.com or in whatever tool you used to buy the label.
If you lost the number, ups.com also offers tracking by reference. You enter a reference such as an order or invoice number that the shipper added to the label. Otherwise, ask the sender, who can always look up the number from their shipment history.
Why Is My UPS Tracking Number Not Working?
A UPS tracking number that returns no results is usually brand new, mistyped, or not a UPS number at all. Work through these checks in order:
- Check the format. A standard number starts with 1Z and has 18 characters. Letters O and I are easy to confuse with zero and one.
- Remove spaces and hidden characters. Numbers copied from an email sometimes bring along extra spaces.
- Give it time. A number exists as soon as the label is created, but tracking may show only “Label Created” until UPS physically scans the package. Our explainer on what “Label Created” means covers that wait.
- Confirm the carrier. Some sellers hand packages to more than one carrier, so a number that doesn’t match any UPS format may belong to USPS or another carrier.
- Ask the sender to confirm the number, or call UPS. Our page on the UPS customer service number lists the right line and hours.
A number that works but shows a problem is a different issue. If tracking says “Exception”, our guide to resolving a UPS delivery exception explains the common causes.
How Do You Tell a Real UPS Tracking Message From a Scam?
A tracking number is one of the best ways to check whether a “UPS” message is real. Instead of tapping the link in a text, type the number into ups.com yourself and see whether UPS really shows a fee or problem. UPS publishes these signs of real contact:
- Real UPS links start with https://www.ups.com or https://billing.ups.com.
- Real UPS texts come from the short codes 75137 or 24031.
- Real UPS emails come from addresses such as pkginfo@ups.com, mcinfo@ups.com, or auto-notify@ups.com.
- If UPS really needs payment for a package, the tracking page shows a “pay now” option.
Our guide to fake UPS delivery texts and emails shows what the common scams look like.
What Can You Do With a UPS Tracking Number?
A tracking number does more than show a package’s location. With it you can:
| Task | Where to do it | Who can do it |
|---|---|---|
| See status and scan history | ups.com or the UPS app | Anyone with the number |
| Get status alerts | “Get Updates” on the tracking page | Anyone with the number |
| Change delivery date or location | “Change My Delivery” (one-time) or UPS My Choice | Recipient, unless the shipper restricted it |
| Redirect or return a sent package | UPS Delivery Intercept | Shipper, before the first delivery attempt |
| See a delivery photo | Tracking page, delivery email, or My Choice | Recipient or shipper |
| File a claim | UPS claims center | Usually the shipper |
Each scan adds a line to the tracking history, and our explainer on how and when UPS scans packages covers why gaps between scans are normal. On the delivery day, UPS My Choice members may also see a Follow My Delivery map. UPS shows it only when the package is out for delivery, the member is logged in, and the delivery window is about an hour away.
Do ParcelPath Labels Get a UPS Tracking Number?
Yes. A UPS label bought through ParcelPath is a normal UPS shipment with a normal UPS tracking number, so you and your recipient can track it on ups.com or in the UPS app. ParcelPath is free to use and offers up to 85% off UPS retail rates. Without a printer, you can show a UPS Mobile Barcode at a UPS Store location to have the label printed there.
To see what a specific package would cost before you buy a label, compare UPS and USPS options in the ParcelPath rate calculator, or use the ParcelPath shipping calculator page to compare carriers.
Frequently Asked Questions
How many digits is a UPS tracking number?
The most common UPS tracking number has 18 characters: “1Z” followed by 16 letters and digits. UPS also lists 12-digit, 9-digit, and “T” plus 10-digit formats on its tracking help page. Freight shipments may use PRO numbers or air waybills of 7 to 20 characters, and UPS can track all of them on ups.com.
Does every UPS tracking number start with 1Z?
No. Most UPS small-package tracking numbers start with 1Z, but UPS also issues numbers that are all digits (12 or 9 digits long) or that start with the letter T. Freight PRO numbers, UPS Mail Innovations numbers, and the 12-digit reference on a UPS Delivery Notice follow their own formats. You can still enter all of them on ups.com.
Can I track a UPS package without the tracking number?
Often, yes. UPS My Choice members can see incoming UPS packages addressed to them without entering a tracking number. Ups.com also lets you track by a reference number the shipper put on the label, such as an order number. If neither works, the sender can always find the UPS tracking number in their shipment history.
Why does my UPS tracking number say “Label Created” but nothing else?
“Label Created” means the shipper has made the label and sent the details to UPS, but UPS hasn’t scanned the package yet. The tracking number is valid, and new scans will appear once a driver picks the package up or it’s dropped off. If the status doesn’t change for several business days, contact the sender.
Sources
- UPS Tracking Support: tracking number formats, fraud guidance, Follow My Delivery
- UPS Help and Support Center: delivery changes and Delivery Intercept
- UPS My Choice: incoming package view and delivery alerts
Follow ParcelPath on LinkedIn for more shipping tips.
Part of our UPS Tracking and Delivery guide. Related: UPS Tracking Statuses, UPS Tracking, Does UPS Scan Packages.
