I have developed the webservice in C#.net. Now I want to know from which site, has it(webservice Object) been instansiating. What is the exact way to know.

Example: I have created the webservice http://localhost/test2service.asmx

Now if a user use it like...(after adding Web reference of this service)...

localhost.test2Service a = new localhost.test2Service();

then how can we know in our webservice that on which site it is being used..