You may register for an Indodax account using your overseas phone number, but when registering for an account, please select the country code corresponding to your current country of residence in the "Mobile Number" box. Then enter your overseas mobile number in the available box provided.
Website display :
Application display:
For example, if you are in Malaysia, please select the international access code (+) 60 then enter your telephone number according to the example listed in the telephone number box.