Ems only knows the express delivery of the tail number.

You can check the courier. As long as you log in to official website Post and enter the express delivery number, you can find out where the express delivery was sent, and you can also see whether the delivery was successful. There are two types of EMS express numbers, one is composed of two letters+nine numbers+two letters, such as EL 123456789CS, and the other is composed of 13 digits (generally starting with 50), in which * * is 13 digits.