ASP.NET MVC 4 Custom URL

I'm new in MVC and I trying to change the default url from http://localhost:55920/ to http://myCustonURL/

My route config:

public class RouteConfig
{        
    public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Login", action = "Index", id = UrlParameter.Optional }
        );            
    }
}

How Can I do it?