C#根据淘宝接口网址获取客户端访问IP和网络运营商

网络运营商会为每台联网的电脑分配公网IP，如何获取它们？？

话不多说直接上代码：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using GW.ThirdOpenAPI.AdminWeb.Infrastructure;

namespace GW.ThirdOpenAPI.AdminWeb.Models.Common
{
    public class GetOutIpHelper
    {
        public static GetOutIpHelper Instance { get; } = new GetOutIpHelper();

        private string url = "http://ip.taobao.com/service/getIpInfo.php?ip=myip";
        public TaobaoData GetIPData()
        {
            string areaJson;
            TaobaoData theData;
            try
            {
                //创建请求
                WebRequest request = WebRequest.Create(url);
                //发送请求，获取相应s
                WebResponse response = request.GetResponse();
                using (Stream stream = response.GetResponseStream())  //获取响应的数据流
                {
                    using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("utf-8")))  //指定的数据流初始化为StreamReader 类
                    {
                        areaJson = reader.ReadToEnd();  //读取数据流中的所有字符
                        theData = JsonHelper.Instance.Deserialize<TaobaoData>(areaJson);
                        if (theData.code == "1")  //表示获取数据失败
                        {
                            return null;
                        }
                        return theData;
                    }
                }
            }
            catch
            {
                return null;
            }
        }
    }

    public class TaobaoData
    {
        public string code { get; set; }

        public IPData data { get; set; }
    }

    public class IPData
    {
        /// <summary>
        ///  外网IP
        /// </summary>
        public string ip { get; set; }

        public string country { get; set; }

        public string area { get; set; }

        public string region { get; set; }

        public string city { get; set; }

        public string county { get; set; }

        /// <summary>
        ///  运营商
        /// </summary>
        public string isp { get; set; }

        public string country_id { get; set; }

        public string area_id { get; set; }

        public string region_id { get; set; }

        public string city_id { get; set; }

        public string county_id { get; set; }

        public string isp_id { get; set; }
    }

}