What's the express delivery number?

There is a big bar code on the list, and the number below the bar code is the single number.

The express delivery number is the unique identification code of the express package, which contains the detailed information of the recipient's express mail, usually consisting of numbers and letters. The courier number can facilitate the courier company, the sender and the recipient to track the courier information in real time.

The express number of each express company has rules to follow, and people can roughly judge which express company sent it from the express number.

Express number:

1 jingdong logistics number: 15 numbers and letters, usually starting with JD.

2.EMS single number: before 20 13, it consists of 13 letters and numbers, with two English digits before and after, the first fixed digit is e, and the last digit is CS. 20 13 After the postal reform at the beginning of the year, the single number should be 13 digits, but there is no single number with 12 digits.

3. Tong Yuan single number: 10 alphanumeric characters, usually starting with 1**, 2**, 8** or D**. The order number was upgraded from 1 0 to 12 from June 20 14.

4. The number of Shentong: 12 digits, usually starting with 268**, 368**, 468**, 968**, etc.