How to query which area of League of Legends created a character?

How to find out where a character was created in League of Legends:

First open the Q Tour Assistant, select the self-service function option, then select League of Legends, and enter the account number and verification code.

Second, the dialog box of sending SMS by mobile phone will pop up, edit the specified password on the mobile phone to send it, and then click I have sent it, so you can query the role of full service.