Get each Countryname of a proxy list

using System;
using System.Net;
using System.Text.RegularExpressions;
using System.IO;
using System.Threading;
using System.Diagnostics;

public class Program
{
    public static void Main()
    {
        var client = new WebClient();
        //http://www.geoplugin.net/php.gp?ip=

        var proxys = File.ReadAllLines("config");
        for (var x = 0; x < proxys.Length; x++)
        {
             var _params = proxys[x].Split(':');
             Program.GetCountry(_params[0], int.Parse(_params[1]));
        }
    }

    public static void GetCountry(string address, int port)
    {
        var client   = new WebClient();
        // client.Proxy = new WebProxy(string.Format("{0}:{1}", address, port));

        var requestThread = new Thread(() =>
        {
            try
            {
                var result = client.DownloadString(string.Format("http://www.geoplugin.net/php.gp?ip={0}",
                    address));

                var arr = result.Split(new string[] { "geoplugin_countryName" }, StringSplitOptions.None);
                var str = arr[1].Split(':');

                var country = str[2].Replace("\"", null).Replace(";", null);
                Console.WriteLine("IPAddress: {0}, Country: {1}", address, country);
                Console.ReadLine();

            } catch (Exception ex)
            {
                Debug.Print(ex.Message);
            }
        });

        requestThread.Start();
    }
}