Is the number of SMS centers different in each region?

Each region has its own SMS center number.

Generally speaking, the local mobile SMS center number rules are as follows

+86

1380+ local area code (four digits, if it is three digits, add 0)+500. For example, Beijing is +86.

1380

0 100

500, Taizhou is +86

1380

0576

500;

Taizhou Unicom's SMS center number is +86 130 10476500.