判断手机所属三大运营商 移动、联通、电信

      /// <summary>
      /// 获取判断手机运营商
      /// </summary>
      /// <param name="mobile"></param>
      /// <returns></returns>
      public static string validateMobile(string mobile)
      {
          String returnString = "";
          if (mobile == null || mobile.Trim().Length != 11)
          {
              return "-1";        //mobile参数为空或者手机号码长度不为11，错误！  
          }
          if (mobile.Trim().Substring(0, 3).Equals("134") || mobile.Trim().Substring(0, 3).Equals("135") ||
                  mobile.Trim().Substring(0, 3).Equals("136") || mobile.Trim().Substring(0, 3).Equals("137")
                  || mobile.Trim().Substring(0, 3).Equals("138") || mobile.Trim().Substring(0, 3).Equals("139") || mobile.Trim().Substring(0, 3).Equals("150") ||
                  mobile.Trim().Substring(0, 3).Equals("151") || mobile.Trim().Substring(0, 3).Equals("152")
                  || mobile.Trim().Substring(0, 3).Equals("157") || mobile.Trim().Substring(0, 3).Equals("158") || mobile.Trim().Substring(0, 3).Equals("159") || mobile.Trim().Substring(0, 3).Equals("182") || mobile.Trim().Substring(0, 3).Equals("183") || mobile.Trim().Substring(0, 3).Equals("187") || mobile.Trim().Substring(0, 3).Equals("188") || mobile.Trim().Substring(0, 3).Equals("147"))
          {
              returnString = "1";   //中国移动  
          }
          if (mobile.Trim().Substring(0, 3).Equals("130") || mobile.Trim().Substring(0, 3).Equals("131") ||
                  mobile.Trim().Substring(0, 3).Equals("132") || mobile.Trim().Substring(0, 3).Equals("145") || mobile.Trim().Substring(0, 3).Equals("155") || mobile.Trim().Substring(0, 3).Equals("156") || mobile.Trim().Substring(0, 3).Equals("185") ||
                  mobile.Trim().Substring(0, 3).Equals("186"))
          {
              returnString = "2";   //中国联通  
          }
          if (mobile.Trim().Substring(0, 3).Equals("133") || mobile.Trim().Substring(0, 3).Equals("153") ||
                  mobile.Trim().Substring(0, 3).Equals("180") || mobile.Trim().Substring(0, 3).Equals("181") || mobile.Trim().Substring(0, 3).Equals("189"))
          {
              returnString = "3";   //中国电信  
          }
          if (returnString.Trim().Equals(""))
          {
              returnString = "0";   //未知运营商  
          }
          return returnString;
      }
      /// <summary>
      /// 判断三大运营商 移动、联通、电信
      /// </summary>
      /// <param name="mobile"></param>
      /// <returns></returns>
      public string GetMobileType(string mobile)
      {
          string result = "";
          if (mobile == null || mobile.Trim().Length != 11)
          {
              return "-1";        //mobile参数为空或者手机号码长度不为11，错误！  
          }
          if (mobile.StartsWith("0") || mobile.StartsWith("+860"))
          {
              mobile = mobile.Substring(mobile.IndexOf("0") + 1, mobile.Length);
          }
          //中国移动服务网号
          ArrayList ChinaMobile = ArrayList.Adapter(new string[] {"134", "135", "136", "137",  
            "138", "139", "147","150", "151", "152", "157", "158", "159", "182","183","187",    "188" });
          //中国联通服务网号
          ArrayList ChinaUnicom = ArrayList.Adapter(new string[] { "130", "131", "132",   "145","155", "156",
              "186", "185" });
          //中国电信服务网号
          ArrayList ChinaTelecom = ArrayList.Adapter(new string[] { "133", "153",   "180", "181", "189" });

          bool bolChinaMobile = (ChinaMobile.Contains(mobile.Substring(0, 3)));

          bool bolChinaUnicom = (ChinaUnicom.Contains(mobile.Substring(0, 3)));
          
          bool bolChinaTelecom = (ChinaTelecom.Contains(mobile.Substring(0, 3)));

          if (bolChinaMobile)
              return result="1"; // 移动  
          if (bolChinaUnicom )
              return result="2"; // 联通  
          if (bolChinaTelecom)
              return result="3"; // 电信   
          if (result.Trim().Equals(""))
          {
              result = "0";      //未知运营商  
          }
          return result;
      }