About USPS Mail and Package Services
The United States Postal Service (USPS) is an independent agency of the United States federal government responsible for providing postal service across the country. Established in 1775, USPS is one of the oldest and most trusted delivery services in America, operating the largest postal network in the world with over 31,000 post offices and retail locations.
USPS delivers to every address in the United States, including Alaska, Hawaii, Puerto Rico, and all U.S. territories. The postal service processes and delivers an average of 425 million mail pieces daily, making it an essential part of American commerce and communication. From letters and packages to priority mail and international shipments, USPS offers a wide range of mailing and shipping services for both individuals and businesses.
USPS Tracking Services
USPS provides comprehensive tracking services that allow customers to monitor their packages and mail items in real-time from acceptance to delivery. The tracking system updates automatically as packages move through the postal network, providing detailed visibility into each stage of the delivery process including acceptance at post office, processing at distribution centers, out for delivery status, and final delivery confirmation.
The USPS tracking system captures scan events at multiple points throughout the shipping journey. When you mail a package with tracking, it receives a unique barcode identifier that postal workers scan at each facility. These scans update the tracking database, allowing you to see exactly where your package is located and when it is expected to arrive at its destination.
How to Track Your USPS Package
Tracking a USPS package is straightforward and can be done through multiple convenient methods. The most direct way is to enter your USPS tracking number in the field above and click Track. This will retrieve the latest status information directly from USPS systems, showing your package location, delivery status, and any updates or delays affecting your shipment.
USPS tracking numbers vary in format depending on the service used. Priority Mail Express and Priority Mail typically use 20 to 22 digit tracking numbers starting with prefixes like 94 or 92. International shipments may have tracking numbers beginning with letter combinations such as EA, CP, or RA followed by nine digits and ending with US. Standard mail with tracking usually has similar format variations based on the specific service selected.
Additional tracking options include the official USPS website, USPS Mobile app for smartphones, text message updates via SMS, and email notifications. The Informed Delivery service is a free tool that provides digital previews of incoming mail and package tracking updates sent directly to your email each morning, helping you stay informed about expected deliveries throughout the day.
USPS Service Options
USPS offers multiple shipping service levels to meet different delivery needs and budgets. Priority Mail Express is the fastest domestic service, providing overnight to 2-day delivery with a money-back guarantee. This premium service includes tracking, insurance up to $100, and signature confirmation at no extra cost, making it ideal for time-sensitive shipments.
Priority Mail is a popular mid-range option delivering packages within 1 to 3 business days to most domestic locations. This service includes free tracking, insurance up to $100, and free package pickup for certain volume requirements. Priority Mail offers flat-rate pricing options where you can ship as much as fits in the box for one set price, regardless of weight up to 70 pounds.
For cost-conscious shippers, First Class Package Service provides affordable delivery for lightweight items under 16 ounces, typically arriving within 1 to 5 business days. Parcel Select Ground and Retail Ground are economical options for heavier packages that are not time-sensitive, with delivery times varying based on distance between origin and destination.
International Shipping with USPS
USPS provides comprehensive international shipping services to virtually every country worldwide through partnerships with foreign postal services. Priority Mail International offers delivery to over 180 countries, typically arriving within 6 to 10 business days. This service includes tracking to many destinations, insurance options, and customs documentation support.
Priority Mail Express International is the fastest international service, guaranteeing delivery to select countries within 3 to 5 business days. For less urgent international shipments, First Class Package International Service provides an economical option for lightweight items, though delivery times are longer and tracking may be limited in some countries.
When shipping internationally, USPS requires completion of customs forms declaring package contents and value. The postal service provides assistance with customs documentation and offers information about prohibited items for specific countries. International tracking visibility varies by destination country, with some locations providing complete door-to-door tracking while others offer limited updates once packages clear U.S. customs.
USPS Delivery Standards and Times
USPS operates on business days Monday through Saturday, with mail and package delivery occurring six days per week in most areas. Standard delivery hours are typically between 8:00 AM and 5:00 PM, though actual delivery times vary based on route volume and local conditions. Some post offices also provide Sunday delivery for Priority Mail Express and Amazon packages in select locations.
The postal service provides estimated delivery dates based on service type and destination distance. These estimates appear when you purchase postage and are updated in tracking information as packages move through the network. While USPS strives to meet these estimates, delivery times are not guaranteed except for Priority Mail Express service with its money-back guarantee.
Delivery to residential addresses and businesses follows standard mail carrier routes. If you are not home when delivery is attempted, the carrier will typically leave a notice with instructions for redelivery or package pickup at your local post office. Customers can request package holds, schedule redelivery, or authorize delivery without signature for certain items through the USPS website.
Package Holds and Post Office Box Services
USPS offers free package hold services for customers who need to delay delivery temporarily. You can request a hold for up to 30 days through the USPS website or by visiting your local post office. This service is useful when traveling or if you prefer to pick up packages at the post office rather than home delivery.
Post Office Boxes provide a secure alternative delivery address available at most USPS locations. P.O. Boxes receive mail and packages 24/7, offering convenient pickup during extended post office hours. Box sizes range from small to extra-large to accommodate different volume needs, with affordable rental rates that include package notification services.
USPS Customer Support
The postal service provides customer support through multiple channels including phone assistance, online help, and in-person service at post offices. The main customer service number connects you with representatives who can help with tracking questions, shipping inquiries, lost package claims, and general postal information.
The USPS website features extensive self-service tools including postage calculators, service comparisons, ZIP code lookup, and detailed FAQ sections covering common questions. Customers can also file claims online for lost or damaged items, request package investigations, and manage their mailing preferences through their USPS account.
Frequently Asked Questions
How do I track my USPS package?
To track your USPS package, enter your tracking number in the field above and click Track. You can also track packages on the USPS website, through the USPS Mobile app, or by texting your tracking number to 28777. USPS tracking numbers are typically 20 to 22 digits long and begin with numbers like 94 or 92 for domestic shipments.
What do USPS tracking statuses mean?
Common USPS tracking statuses include: "Accepted" (package received by USPS), "In Transit" (moving through postal network), "Out for Delivery" (with carrier for delivery today), "Delivered" (successfully delivered), and "Available for Pickup" (ready at post office). Each status includes timestamp and location information to help you monitor your package progress.
How long does USPS shipping take?
Delivery times vary by service: Priority Mail Express delivers overnight to 2 days, Priority Mail takes 1 to 3 business days, First Class Package Service delivers in 1 to 5 business days, and Ground services take 2 to 8 business days depending on distance. USPS provides estimated delivery dates when you purchase postage and in tracking updates.
Where can I find my USPS tracking number?
Your USPS tracking number is printed on your receipt when you mail a package at the post office or purchase postage online. If you bought postage through USPS.com or Click-N-Ship, the tracking number appears in your confirmation email. Sellers also provide tracking numbers to buyers when shipping purchased items.
What should I do if my USPS package is lost?
If your package has not moved for several days or shows no updates, first check the tracking information for any holds or delivery exceptions. Contact USPS customer service at 1-800-275-8777 to initiate a package search. If the package cannot be located, you can file a claim for insured items through the USPS website within the applicable time frame.
Can I change the delivery address for my USPS package?
USPS offers Package Intercept service for a fee to redirect packages already in transit. You can request address changes through your USPS.com account before the package is delivered. Not all mail classes are eligible for intercept service. For best results, request changes as soon as possible after mailing.
Does USPS deliver on Sundays?
USPS delivers Priority Mail Express packages on Sundays in many areas. Amazon packages are also delivered on Sundays in select locations. Regular mail and standard package services are not delivered on Sundays except in special circumstances. Check your tracking information for expected delivery date including possible Sunday delivery for eligible items.