Where is VS2012 Route Table?

Hello everyone, I have a question about the default template generated by VS2012. I can see that when I create a new website and choose asp.net webform site, a lot of packages is added. When I run the web page and I can see that all the pages created by default all have friendly urls. For example, http://localhost:1234/Contact, http://localhost:1234/Account/Login and so on. I want to know where is this route table resided? I want to go and add more url based on my requirements.
Thanks.