using System.Net; using System.Threading;

var handler = new HttpClientHandler { UseProxy = true }; var proxy = new WebProxy("http://us.swiftproxy.net:7878"); var proxyUsername = "username_custom_zone_us"; var proxyPass = "password"; proxy.Credentials = new NetworkCredential(proxyUsername, proxyPass); handler.Proxy = proxy; var httpClient = new HttpClient(handler);

httpClient.Timeout = TimeSpan.FromSeconds(15);

var task = httpClient.GetStringAsync("http://ipinfo.io/json"); task.Wait(); Console.WriteLine(task.Result);