USPS Tracking. The most common USPS 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” (e.g. EA 999 999 999 US).
What does my tracking number look like?
Service / Sample Number
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 Hold For Pickup 9303 3000 0000 0000 0000 00
Global Express Guaranteed® 82 000 000 00
Service / Sample Number
Priority Mail Express International® EC 000 000 000 US
Priority Mail Express® 9270 1000 0000 0000 0000 00
EA 000 000 000 US
Priority Mail International® CP 000 000 000 US
Registered Mail™ 9208 8000 0000 0000 0000 00
Signature Confirmation™ 9202 1000 0000 0000 0000 00
Where do I find my tracking number?
Your tracking number can be found in the following places:
- Your Post Office™ shipping receipt
- Your sales receipt if you bought insurance at the Post Office™
- Your email confirmation if you shipped from USPS.com
- The shipping confirmation email you received from an online retailer
- The bottom peel-off portion of your USPS Tracking® label
Parcel Tracking 