Joke Collection Website - Public benefit messages - What prefix can Unicom flash card cornet add to send short messages?

What prefix can Unicom flash card cornet add to send short messages?

Just add 80 before the cornet. It's still free

Example: My short number is 222228. You just need to edit the message and send it to 80222228. After I receive the message, your trombone will still be displayed! Therefore, it is still included in the preferential SMS of the package, so feel free to send it.