I accidentally deleted the information center number of my mobile phone, so I can't send short messages. What should I do? thank you

The setting method of China Mobile Information Center is:

+86 13800***500, where * * * is your area code, go to 0; The area code is a 3-digit area followed by 0.

For example:

The area code of Jinan is 053 1, and the information center is+8613800531500.

The area code of Shanghai is 02 1, so the information center is +86 138002 10500.