What number is the holiday short message customized by China Mobile?

The coding rule of the service number of China Mobile SMS Center is: +86 1380+ four-digit long-distance area code of the account opening branch +500; if the long-distance area code is less than four digits, add "0" to complete it (for example, Beijing is +86 13800 100500). You can also call the local mobile service center at 10086.

For example, I set up a mobile phone card in Wuhan, so the center number is +86 13800270500.