реагировать нативно, получая идентификатор на цель прессы

Это хороший образец для вас:

public class IpProperties
    {
        public string Status { get; set; }
        public string Country { get; set; }
        public string CountryCode { get; set; }
        public string Region { get; set; }
        public string RegionName { get; set; }
        public string City { get; set; }
        public string Zip { get; set; }
        public string Lat { get; set; }
        public string Lon { get; set; }
        public string TimeZone { get; set; }
        public string ISP { get; set; }
        public string ORG { get; set; }
        public string AS { get; set; }
        public string Query { get; set; }
    }
 public string IPRequestHelper(string url)
    {
        HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
        HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();

        StreamReader responseStream = new StreamReader(objResponse.GetResponseStream());
        string responseRead = responseStream.ReadToEnd();

        responseStream.Close();
        responseStream.Dispose();

        return responseRead;
    }

    public IpProperties GetCountryByIP(string ipAddress)
    {
        string ipResponse = IPRequestHelper("http://ip-api.com/xml/" + ipAddress);
        using (TextReader sr = new StringReader(ipResponse))
        {
            using (System.Data.DataSet dataBase = new System.Data.DataSet())
            {
                IpProperties ipProperties = new IpProperties();
                dataBase.ReadXml(sr);
                ipProperties.Status = dataBase.Tables[0].Rows[0][0].ToString();
                ipProperties.Country = dataBase.Tables[0].Rows[0][1].ToString();
                ipProperties.CountryCode = dataBase.Tables[0].Rows[0][2].ToString();
                ipProperties.Region = dataBase.Tables[0].Rows[0][3].ToString();
                ipProperties.RegionName = dataBase.Tables[0].Rows[0][4].ToString();
                ipProperties.City = dataBase.Tables[0].Rows[0][5].ToString();
                ipProperties.Zip = dataBase.Tables[0].Rows[0][6].ToString();
                ipProperties.Lat = dataBase.Tables[0].Rows[0][7].ToString();
                ipProperties.Lon = dataBase.Tables[0].Rows[0][8].ToString();
                ipProperties.TimeZone = dataBase.Tables[0].Rows[0][9].ToString();
                ipProperties.ISP = dataBase.Tables[0].Rows[0][10].ToString();
                ipProperties.ORG = dataBase.Tables[0].Rows[0][11].ToString();
                ipProperties.AS = dataBase.Tables[0].Rows[0][12].ToString();
                ipProperties.Query = dataBase.Tables[0].Rows[0][13].ToString();

                return ipProperties;
            }
        }
    }

И тест:

var ipResponse = GetCountryByIP("your ip address or domain name :)");