Is it possible to choose the countries of operation for the SIM cards?

The procedure for choosing the countries of operation is as follows:

• Log in to the IoT Portal (click here https://www.thingsmobile.com/login and enter your username and password) 
• Select a SIM card in the “List of SIM cards” section by clicking in the box to the left of it
• Select “Set the countries of operation”
• Select countries
• Select “Enable service/Disable service”
• Click “CONTINUE” to confirm