USPS Package Tracking
- Official Site
- usps.com
- Contact Number
- 1-800-275-8777
- [email protected]
You'll be redirected to 15track.com to complete your tracking.
About USPS
Run by the US federal government, USPS is the nation's official mail carrier — processing upwards of 128 billion mail pieces each year through a retail network of more than 31,000 post offices and authorized locations.
USPS Tracking Status Codes Explained
- Pre-Shipping
- USPS has received the shipment information from the sender, but the package hasn't been handed over to the Postal Service yet.
- Arrived at Unit
- Your package has reached the local USPS facility that will handle final delivery.
- In Transit to Next Facility
- Your package is moving between USPS facilities on its way to the destination.
- Transferred to Post Office
- The package has been passed to the local post office that will deliver it.
- Out for Delivery
- Your package is on a carrier's vehicle and scheduled to arrive today.
- Scheduled for Delivery
- USPS has set a specific date for delivery of your package.
- Notice Left
- A delivery attempt was made but no one was available to receive the package — check the notice for pickup or redelivery options.
- Delivered
- The package has been successfully delivered to the destination address.
- Exception
- An unexpected event — bad weather, an incorrect address, or a customs hold — has delayed delivery.
- Return to Sender
- The package couldn't be delivered and is being sent back to the original sender.
USPS Delivery Times & Service Options
Priority Mail Express
1–2 daysFastest USPS option, delivered 7 days a week with a money-back guarantee.
Priority Mail
2–3 daysFast, reliable delivery for packages up to 70 lbs with free tracking and insurance up to $100.
USPS Ground Advantage
2–5 daysAffordable ground shipping for packages up to 70 lbs, including HAZMAT-eligible items.
First-Class Mail
1–5 daysCheapest service for standard-sized letters, postcards, and large envelopes under 13 oz.
USPS Media Mail
2–8 daysBudget service for sending books, sound recordings, and other educational materials.
Useful Links
Frequently Asked Questions
How can I check the status of my USPS shipment?
Paste your USPS tracking number into the search box above and hit "Track Now" — you'll be taken straight to a live status update.
What format does a USPS tracking number use?
Domestic USPS numbers run 20–22 digits (for example, 9400 1000 0000 0000 0000 00). International items use a 13-character code mixing letters and numbers, such as EC123456789US.
Where is my USPS tracking number printed?
Look on your mailed receipt, in the dispatch confirmation sent by the sender, or directly on the barcode label affixed to the package.
When does USPS typically deliver?
Regular mail runs Monday through Saturday and usually reaches your door before 5:00 PM. Priority Mail Express is available all seven days.
What causes a USPS delivery delay?
Delays most often stem from bad weather, peak-season backlogs, unreadable addresses, customs inspections on international parcels, or a missed scan along the route.