What short message can Unicom send to inquire about the package currently in use?

Unicom users can use Unicom number to send short message "CXTC" to 100 10 to inquire about the currently used packages. After sending, the system will reply to you with a short message, the content is as follows: "The product information you handled is as follows: product name: * * * *, effective date: * * year * * month * * day, and expiration date: * * year * * month * * day."