A name and address will not find a parcel
None of the three carriers offers a lookup by recipient. The barcode is the only index into the system, which is the whole reason the number matters so much.
Recovery routes
Tracking a package when you do not have the number
For a parcel already in the network with no number in your hands, the direct answer is that you cannot, and USPS says so in print: the Postal Service cannot track or locate an item without the tracking number. What you can do is recover the number from somewhere else, and there are five places it reliably hides.
Straight answer firstFive recovery routesCarrier wording quoted
The number is the shipment
Every support process at every carrier starts with it, which is why recovering it beats every workaround.
The straight answer, before the workarounds
"Just remember to hold on to your retail receipt. The Postal Service cannot track or locate an item without the tracking number."
USPS Tracking, The Basics, article 000007991 on faq.usps.com, checked 2026-07-28.
USPS repeats the point in its delay guidance, telling recipients without the number from the mailing label or receipt to contact the shipper and ask them either to supply the number or to track the package themselves. UPS and FedEx both build their support flows around a number as well, which is why every article promising a clever bypass ends up describing a way of finding the number after all.
Being blunt about that saves time. If the parcel is already moving and nobody anywhere holds a number for it, no carrier tool will locate it by address, name or description.
Five places the number is actually recoverable
- 1. The sender, first and alwaysThe person who bought the postage has the number in an order confirmation, a receipt or a marketplace record. USPS's published instruction to recipients is exactly this: contact the mailer and ask for the number or ask them to track it.
- 2. A UPS delivery noticeUPS describes its delivery notice as a bar-coded notice including a 12-digit reference number, left on the first delivery attempt. That reference works in the UPS tracking box.
- 3. A FedEx door tagFedEx states that a door tag number is associated with the package's original tracking number, starts with DT and is followed by 12 numbers, and is used to locate the package. It can be typed into the tracking tool or scanned from the tag.
- 4. A USPS redelivery noticeUSPS states that all revised PS Form 3849 notices carry barcodes and that the barcode number can be entered into USPS Tracking and the Schedule a Redelivery applications instead of a tracking number. Where several parcels failed in one attempt, that one number covers all of them.
- 5. Informed Delivery, for anything still on its wayUSPS describes it as Daily Digest emails previewing mail and packages scheduled to arrive soon, with packages tracked and managed in one place. It does not resurrect a number for a parcel already delivered, but it does mean the next one is visible without you holding anything.
UPS wording from its tracking number and delivery notice pages, FedEx wording from its door tag page, USPS wording from articles 000006180 and 000007099 and from usps.com/manage/informed-delivery.htm. All checked 2026-07-28.
If you are the sender and lost it
This version is more recoverable, because the number was issued to you and something in your records has it.
Check the order confirmation from wherever you bought the postage, the PDF you printed the label from, and the retail receipt if you paid at a counter. USPS keeps its own USPS Tracking records for 120 days, so once you have the number the history is usually still there. Labels bought through SMKlog keep the tracking number attached to the order, and support can match it back for you.
| Carrier | Service | Price | Transit window returned |
|---|---|---|---|
| UPS | Ground Saver | $10.37 | No window supplied |
| UPS | Ground | $11.24 | 1 business day |
| FedEx | Ground Economy | $11.42 | 2-3 business days |
| UPS | 3 Day Select | $15.22 | 1 business day |
| UPS | 2nd Day Air | $15.47 | 1 business day |
On a short lane like that one, several rows quoted a single business day and one returned no window at all. If you are deciding between chasing a lost number and simply sending a replacement, price the replacement first: on close lanes the answer is often cheaper than the hour you would spend on the phone.
What to do, and in which order
- Minute one: search your own mail archive for the carrier nameMost numbers are sitting in an unread shipping confirmation.
- Same day: message the sender with the order referenceThey can read the number in seconds. This resolves the majority of cases and costs nothing.
- If a notice or tag was left: use its numberAll three carriers publish a substitute number on their notices, and all three accept it in the tracking box.
- Before the next parcel: turn on Informed DeliveryIt shifts the problem from recovery to prevention for anything USPS handles.
- Past the quoted window with nothing found: work through the senderUSPS accepts a Missing Mail search request starting 7 days from mailing, and it requires the tracking number among the identifying details, which is another reason the sender has to be involved.
We sell US domestic parcel labels with no account required. We do not sell international labels, fulfillment or platform integrations, so if the parcel in question came from a marketplace warehouse or crossed a border, the sender and the carrier are the only two parties who can help.
Informed Delivery is the prevention, not the cure
It shows what is scheduled to arrive rather than reconstructing history. Signing up today helps with next week's parcel and does nothing for last week's.
What our support can check
For labels bought through SMKlog we hold the tracking number against the order and can match it back from the order details. For a label bought anywhere else, we have no visibility at all and will say so rather than guess.
No-number questions
Can you track a package without a tracking number?
Not directly. USPS states that the Postal Service cannot track or locate an item without the tracking number, and it directs recipients who do not have one to contact the shipper. The realistic goal is recovering the number rather than bypassing it.
What can a recipient do with no number?
Ask the sender, then sign up for Informed Delivery. USPS describes Informed Delivery as Daily Digest emails that preview mail and packages scheduled to arrive soon, with packages tracked and managed in one place, which gives visibility without you holding a number.
Are there other numbers that work like a tracking number?
Three. A UPS delivery notice carries a 12-digit reference number. A FedEx door tag starts with DT followed by 12 numbers and can be entered into the tracking tool. A USPS PS Form 3849 notice carries a barcode number that can be entered into USPS Tracking and the redelivery application instead of a tracking number.
Can SMKlog find a shipment without a number?
Our tracking page needs the number from a label bought here, because it reads the carrier signal for that specific shipment. If the label came from us and the number is lost, support can look it up against the order. If the label came from somewhere else, the sender is the only route.