FedEx Tracking Number Format

The most common tracking number format is 20 digits (e.g. 9999 9999 9999 9999 9999), or a combination of 13 alphabetic and numeric characters, usually starting with 2 alphabets, following by 9 digits, and ending by "US". Some other less common formats may also exist, such as 10 digits.

1. 9999999999 (10 digits)
2. 999999999999 (12 digits: FedEx Ground, FedEx Home Delivery)
3. 99999999999999999999 (20 digits: FedEx SmartPost)
4. AA 999 999 999 US (International Shipping)