Track one or multiple packages with UPS Tracking, use your tracking number to track the status of your package. 1Z, then 16 letters and digits: 18 characters in all. The number, split the way the carrier builds it. It updates as you type. Spaces and dashes don’t count; carriers often print long numbers in groups of four. Some formats overlap, so a number can fit more than one carrier. Check available carrier events for parcel, container and air waybill references. Trackora provides tracking data where supported and links to official carrier portals. Worked examples Example 1 — 1Z999AA10123456784 Eighteen characters beginning 1Z. No other carrier uses that prefix, so this resolves to UPS with high confidence without any further analysis. The six characters after 1Z are the shipper's account number, which is why parcels from the same seller share a long common prefix. Track one or multiple packages with UPS Tracking, use your tracking number to track the status of your package. Enter your FedEx tracking number, track by reference, obtain proof of delivery, or TCN. See FedEx Express, Ground, Freight, and Custom Critical tracking services. Tracking number or tracking code is a unique number assigned to each package, which allows you to monitor the movement of the parcel between the countries or even inside one country. Tracking numbers can be international or traceable only within the country of the sender. Track one or multiple packages with UPS Tracking, use your tracking number to track the status of your package. 1Z999AA10123456784 UPS Delivered From San Francisco, CA To New York, NY Ship Date Nov 01, 2026 We put together a list of common tracking statuses to help you track your package and better understand where it is in its journey. Tracking Statuses Explained. Your UPS driver left a delivery notice because we missed you the first time around. Here’s What to Do Next.