USPS Tracking ® 9400 1000 0000 0000 0000 00 Priority Mail ® 9205 5000 0000 0000 0000 00 Certified Mail ® 9407 3000 0000 0000 0000 00 Collect on Delivery 9303 3000 0000 0000 0000 00 Global Express Guaranteed ® 82 000 000 00 Priority Mail Express International™ EC 000 000 000 US Priority Mail Express™ 9270 1000 0000 0000 0000 00 EA 000. Track USPS package deliveries, get tracking text and email notifications, forward mail, change your address, and learn about setting up PO boxes or home mailboxes. Powered by GlobalLink Web Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need for sending mail and shipping packages. Need help with a USPS package? Contact customer service by phone, email, or social media to ask about tracking, delivery delays, or missing mail. USPS.com® - USPS Tracking® Informed Delivery is a free service from USPS that shows you preview images of incoming mail, plus status updates about your incoming and outbound packages. Get notifications in a morning Daily Digest email, or at any time from the dashboard using your smartphone, computer, or USPS Mobile app. Track your USPS packages by entering the tracking number to check the delivery status and location. Use these tracking services to keep up with your mailing. Mail Tracking & Reporting provides access to the following services: Track your USPS package and get detailed delivery status information.