It's called Transfer Online for a reason. If you go to the T/A website you'll see that they state:
Through our proprietary software, we are able to provide our clients and their shareholders with immediate access to their information. All shareholder information - names, addresses, phone numbers, taxpayer information, share ownership and historical data - is available online. And issuers, too, can access a comprehensive suite of tools and reports at any time by logging into TransferOnline.com.
Go to Transfer Online - www.transferonline.com, select "Who We Are"