Can I Change My Dingtone Phone Number for Free? Leave a Comment / FAQ / By Dingtone Team No. You cannot change your Dingtone phone number for free. If you want to change your phone number, you will need to pay for the new Dingtone number. Related posts: How Much does it Cost to Send and Receive SMS with Dingtone? Do I Permanently Own My Dingtone Phone Numbers? How is a Dingtone Message Different from a Regular SMS? How Can I Get More Free Credits from Dingtone?