Getting contact information How can I improve this code?

public class Address {     
   public string house_no { get; set; }     
   public string street { get; set; }     
   public string zip { get; set; }
}
public class Contact {     
   public string email { get; set; }     
   public string ph_no { get; set; }     
   public Address address { get; set; } 
}

//Test program  
class Program {
    static void GetContacts(string input)   {
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        Dictionary&lt;string, Contact&gt; ContactList = serializer.Deserialize&lt;Dictionary&lt;string, Contact&gt;&gt;(input);        
    }

    static void Main(string[] args)     {  
        //jsonText is a string that I retrieve from a web service. 
        string jsonText = ws.GetContactList();
        GetContacts(jsonText);
    } 
}
It is already short and to the point. One minor formatting change; I would make your class properties upper camel case, which is typical for C#. I also dropped the abbreviations.

public class Address {     
   public string HouseNumber { get; set; }     
   public string Street { get; set; }     
   public string Zip { get; set; }
}

public class Contact {     
   public string Email { get; set; }     
   public string PhoneNumber { get; set; }     
   public Address Address { get; set; } 
}