Tracking a package through the postal system shouldn’t feel like solving a puzzle. Whether you’re running an e-commerce operation or waiting on an important personal delivery, understanding how USPS Tracking works helps you avoid missed deliveries, catch delays early, and know exactly what to do next.
What You Want to Know
- To track a USPS package, enter your tracking number at USPS tracking tool.
- USPS Tracking shows recorded scan events — acceptance, facility processing, arrival at your local Post Office, out for delivery, and delivery — not a live map.
- Find your tracking number on your mailing receipt, shipping label, order confirmation email, or the peel-off strip of a USPS Tracking label.
- Ordinary First-Class Mail letters generally don’t include tracking unless an extra service like Certified Mail was purchased.
- USPS cannot look up a package by name or address alone — you need the tracking number.
Table of Contents
Where to Find Your USPS Tracking Number on a Receipt
This is the single most common thing people search for on this topic, so here’s exactly where to look:
- Post Office sales receipt: The tracking number is usually printed near the bottom of the receipt, often under a barcode, and may be labeled “USPS Tracking #” or similar.
- Self-service kiosk receipt: Kiosk (APC) receipts print the tracking number in the same general area as staffed-counter receipts — check near the bottom, below the transaction summary.
- Peel-off label strip: If you applied your own shipping label at the counter, the backing strip you peel off and keep usually has the tracking number printed on it.
- Online receipt / Click-N-Ship confirmation: If you paid for postage online, the number appears in your order confirmation email and in your USPS.com account order history.
- Shipment confirmation email: If someone else shipped the item to you, check the confirmation email they’d have received — it typically includes the tracking number.
If you’re the recipient and don’t have the number: ask the sender or retailer for it. USPS does not offer a public tool to look up a package by name or delivery address alone — a tracking number is required.
Read More About: Mailman Tracker | Where Is My Mail?
How USPS Tracking Works
USPS records scans at selected points as an item moves through the network: label creation, acceptance, facility arrival and departure, transportation, arrival at the local delivery unit, out for delivery, and delivery (or an attempted delivery, forwarding, or pickup).
Not every physical handoff produces a customer-visible scan — containers can move between operations while an individual item shows no new event.
Tracking is a progress record based on recorded scans, not continuous live location tracking.
USPS does not offer customers a way to see a carrier’s real-time location.
How to Track a USPS Package
- Copy your tracking number exactly, without extra spaces or punctuation.
- Go to the official USPS Tracking page.
- Paste the number into the tracking field and submit it.
- Review the latest status, date, location, and expected-delivery information.
- Turn on text or email notifications if you want alerts for future scans.
You can enter multiple tracking numbers in USPS’s online tool at once. Keep the number saved until delivery, a return, or a claim is fully resolved.
Other ways to check status:
- Text: Text your tracking number to 28777 (2USPS) for SMS status updates.
- Phone: Call USPS at 1-800-222-1811 for package tracking and delivery questions.
- App: The USPS Mobile app (iOS and Android) supports barcode scanning and tracking management.
USPS Tracking Number Formats
Standard USPS Tracking numbers are commonly 20–22 digits long, but the exact length and prefix vary by service — don’t judge whether a number is valid purely by its digit count. Use the number exactly as printed by USPS or supplied by the sender.
| Service | Typical Format |
| USPS Tracking / domestic packages | Numeric, commonly 20–22 digits |
| Priority Mail Express | Numeric tracking format (an alpha-prefix format also exists for some services) |
| Certified Mail | Numeric article number |
| International shipments | 13-character format with a service-specific prefix (e.g., CP, EC, LZ) |
A common point of confusion — “EP”: If you’ve seen a reference to a tracking number “starting with EP,” that’s not a standard USPS prefix. You’re most likely thinking of EC, used for Priority Mail Express International, or CP, used for Priority Mail International.
If a number you have starts with letters you don’t recognize, it’s safest to enter it exactly as printed on your receipt or label rather than guess at the service type from the prefix alone.
Common USPS Tracking Statuses
| Status | What It Means | What to Do |
| Shipping Label Created / USPS Awaiting Item | A label exists, but USPS hasn’t yet recorded receiving the package. | Contact the sender if this doesn’t change beyond the expected handoff window. |
| USPS in Possession of Item | USPS has accepted or picked up the package. | No action needed — watch for further scans. |
| In Transit / Moving Through Network | The package is being processed or transported toward the delivering Post Office. | Repeated facility scans can be normal. Check service alerts if it seems delayed. |
| Arrived at Post Office | The package reached the local delivery unit. | USPS says it should generally arrive that day or the next postal business day. |
| Out for Delivery | The item was prepared for delivery that day. | May arrive separately from regular mail. Submit a service request if not delivered after one full postal business day. |
| Delivered | USPS recorded a delivery date, time, and location. | Check the mailbox, parcel locker, porch, other entrances, household members, and building staff before reporting it missing. |
| Notice Left | A delivery attempt was made but couldn’t be completed (signature, access, or secure-location issue). | Follow the notice’s instructions for redelivery or pickup. |
| Forwarded | The package is being forwarded to a different address because of a Change of Address request, or because it’s at the wrong Post Office for delivery. | Check the tracking history and confirm the shipping address if you didn’t expect the forwarding. |
| No Access / Insufficient Address | The carrier couldn’t reach the delivery point, or the address needs correction. | Clear any access obstacles; contact USPS if the address needs updating. |
What If USPS Tracking Isn’t Updating?
A scan gap doesn’t always mean something is wrong — items can sit in transit between recorded events.
- Check the latest expected delivery date and USPS service information. A gap between scans does not necessarily mean the package has stopped moving.
- Confirm USPS has possession of the item — if the status is still “Awaiting Item,” contact the sender.
- Check current USPS service alerts for regional disruptions.
- Turn on tracking notifications rather than refreshing the page repeatedly.
- If the status says Delivered but the item is missing, check all secure locations first, then submit a service request if it’s still missing after one full postal business day.
- If the item is genuinely late or lost, a Missing Mail Search can be filed starting 7 days after the original mailing date — not 7 days after the last scan. Eligibility depends on the mail class and item.
Which USPS Services Include Tracking?
USPS Tracking is included with many domestic package services, including Priority Mail, Priority Mail Express, USPS Ground Advantage, and Media Mail.
Tracking availability depends on the mail class and service purchased.
Standard First-Class Mail letters and postcards do not include tracking.
To add tracking to letter mail, the sender must purchase an eligible extra service — such as Certified Mail or Registered Mail — at the time of mailing.
Tracking cannot be added to an item after it has already shipped.
USPS Tracking Plus is a separate, paid service that can extend access to eligible tracking histories — up to 10 years for domestic products and up to 7 years for international products, depending on the class.
It does not speed up delivery or add live location data. Check current USPS pricing (Notice 123) before purchase.
Can You Track a Package Without a Tracking Number?
Not directly — USPS’s public tracking tool requires a tracking number and does not support lookup by name or address alone.
If you’re expecting a package, USPS Informed Delivery may show eligible incoming packages associated with your address, without you needing to enter the number yourself.
Availability and features depend on your account and address — see the official Informed Delivery page to check eligibility and enroll.
Read More About: Informed Delivery by USPS
International USPS Tracking
Use the same USPS tracking number first.
Some events may continue updating on the destination country’s postal operator site after the item leaves the U.S.
Certain international products provide limited tracking events, and customs processing can create a visible gap — that gap reflects the customs process, not a lost package, and USPS cannot change another country’s import decisions.
How PostScan Mail Fits In
A virtual mailbox does not replace USPS Tracking or control how USPS transports a package.
It can help you manage incoming mail remotely by providing notifications and, depending on your plan, options such as mail scanning, forwarding, storage, or shredding.
This can be useful if you travel frequently, work remotely, or need to manage mail without visiting a physical mailbox.
It also gives you a real street address or P.O. box address you can use as a personal or business mailing address.
Related: How to Find USPS Lost Packages or Missing Mail
Official Sources
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