Hi  JOYSON,
I have created sample that full-fill your requirement. Refer the below sample code.
CS.aspx
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script type="text/javascript">
        $(function () {
            var ip = $('#hfIpAddress').val();
            $.ajax({
                type: "POST",
                url: "CS.aspx/GetLocationDetails",
                data: "{ipAddress:'" + ip + "'}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function OnSuccess(response) {
                    var table = $("#tblVisitorLocationDetails");
                    var customers = response.d;
                    $(customers).each(function () {
                        $("#ipAddress", table).html(this.IPAddress);
                        $("#countryName", table).html(this.CountryName);
                        $("#countryCode", table).html(this.CountryCode);
                        $("#cityName", table).html(this.CityName);
                        $("#regionName", table).html(this.RegionName);
                        $("#zipCode", table).html(this.ZipCode);
                        $("#latitude", table).html(this.Latitude);
                        $("#longitude", table).html(this.Longitude);
                        $("#timeZone", table).html(this.TimeZone);
                    });
                },
                failure: function (response) { alert(response.d); },
                error: function (response) { alert(response.d); }
            });
        });        
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:HiddenField ID="hfIpAddress" runat="server" />
        <table id="tblVisitorLocationDetails">
            <tr>
                <th>
                    IPAddress
                </th>
                <th>
                    CountryName
                </th>
                <th>
                    CountryCode
                </th>
                <th>
                    CityName
                </th>
                <th>
                    RegionName
                </th>
                <th>
                    ZipCode
                </th>
                <th>
                    Latitude
                </th>
                <th>
                    Longitude
                </th>
                <th>
                    TimeZone
                </th>
            </tr>
            <tr>
                <td>
                    <span id="ipAddress"></span>
                </td>
                <td>
                    <span id="countryName"></span>
                </td>
                <td>
                    <span id="countryCode"></span>
                </td>
                <td>
                    <span id="cityName"></span>
                </td>
                <td>
                    <span id="regionName"></span>
                </td>
                <td>
                    <span id="zipCode"></span>
                </td>
                <td>
                    <span id="latitude"></span>
                </td>
                <td>
                    <span id="longitude"></span>
                </td>
                <td>
                    <span id="timeZone"></span>
                </td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>
CS.aspx.cs
static string APIKey = ConfigurationManager.AppSettings["APIKey"];
protected void Page_Load(object sender, EventArgs e)
{
    string ipAddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
    if (string.IsNullOrEmpty(ipAddress))
    {
        ipAddress = Request.ServerVariables["REMOTE_ADDR"];
    }
    hfIpAddress.Value = ipAddress;
}
[System.Web.Services.WebMethod]
public static List<Location> GetLocationDetails(string ipAddress)
{
    string url = string.Format("http://api.ipinfodb.com/v3/ip-city/?key={0}&ip={1}&format=json", APIKey, ipAddress);
    List<Location> locations = new List<Location>();
    using (WebClient client = new WebClient())
    {
        string json = client.DownloadString(url);
        Location location = new JavaScriptSerializer().Deserialize<Location>(json);
        locations.Add(location);
    }
    return locations;
}
public class Location
{
    public string IPAddress { get; set; }
    public string CountryName { get; set; }
    public string CountryCode { get; set; }
    public string CityName { get; set; }
    public string RegionName { get; set; }
    public string ZipCode { get; set; }
    public string Latitude { get; set; }
    public string Longitude { get; set; }
    public string TimeZone { get; set; }
}
VB.aspx
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script type="text/javascript">
        $(function () {
            var ip = $('#hfIpAddress').val();
            $.ajax({
                type: "POST",
                url: "VB.aspx/GetLocationDetails",
                data: "{ipAddress:'" + ip + "'}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function OnSuccess(response) {
                    var table = $("#tblVisitorLocationDetails");
                    var customers = response.d;
                    $(customers).each(function () {
                        $("#ipAddress", table).html(this.IPAddress);
                        $("#countryName", table).html(this.CountryName);
                        $("#countryCode", table).html(this.CountryCode);
                        $("#cityName", table).html(this.CityName);
                        $("#regionName", table).html(this.RegionName);
                        $("#zipCode", table).html(this.ZipCode);
                        $("#latitude", table).html(this.Latitude);
                        $("#longitude", table).html(this.Longitude);
                        $("#timeZone", table).html(this.TimeZone);
                    });
                },
                failure: function (response) { alert(response.d); },
                error: function (response) { alert(response.d); }
            });
        });        
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:HiddenField ID="hfIpAddress" runat="server" />
        <table id="tblVisitorLocationDetails">
            <tr>
                <th>
                    IPAddress
                </th>
                <th>
                    CountryName
                </th>
                <th>
                    CountryCode
                </th>
                <th>
                    CityName
                </th>
                <th>
                    RegionName
                </th>
                <th>
                    ZipCode
                </th>
                <th>
                    Latitude
                </th>
                <th>
                    Longitude
                </th>
                <th>
                    TimeZone
                </th>
            </tr>
            <tr>
                <td>
                    <span id="ipAddress"></span>
                </td>
                <td>
                    <span id="countryName"></span>
                </td>
                <td>
                    <span id="countryCode"></span>
                </td>
                <td>
                    <span id="cityName"></span>
                </td>
                <td>
                    <span id="regionName"></span>
                </td>
                <td>
                    <span id="zipCode"></span>
                </td>
                <td>
                    <span id="latitude"></span>
                </td>
                <td>
                    <span id="longitude"></span>
                </td>
                <td>
                    <span id="timeZone"></span>
                </td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>
VB.aspx.vb
Shared APIKey As String = ConfigurationManager.AppSettings("APIKey")
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
    Dim ipAddress As String = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
    If String.IsNullOrEmpty(ipAddress) Then
        ipAddress = Request.ServerVariables("REMOTE_ADDR")
    End If
    hfIpAddress.Value = ipAddress
End Sub
<System.Web.Services.WebMethod()> _
Public Shared Function GetLocationDetails(ipAddress As String) As List(Of Location)
    Dim url As String = String.Format("http://api.ipinfodb.com/v3/ip-city/?key={0}&ip={1}&format=json", APIKey, ipAddress)
    Dim locations As New List(Of Location)()
    Using client As New WebClient()
        Dim json As String = client.DownloadString(url)
        Dim location As Location = New JavaScriptSerializer().Deserialize(Of Location)(json)
        locations.Add(location)
    End Using
    Return locations
End Function
Public Class Location
    Public Property IPAddress() As String
        Get
            Return m_IPAddress
        End Get
        Set(value As String)
            m_IPAddress = value
        End Set
    End Property
    Private m_IPAddress As String
    Public Property CountryName() As String
        Get
            Return m_CountryName
        End Get
        Set(value As String)
            m_CountryName = value
        End Set
    End Property
    Private m_CountryName As String
    Public Property CountryCode() As String
        Get
            Return m_CountryCode
        End Get
        Set(value As String)
            m_CountryCode = value
        End Set
    End Property
    Private m_CountryCode As String
    Public Property CityName() As String
        Get
            Return m_CityName
        End Get
        Set(value As String)
            m_CityName = value
        End Set
    End Property
    Private m_CityName As String
    Public Property RegionName() As String
        Get
            Return m_RegionName
        End Get
        Set(value As String)
            m_RegionName = value
        End Set
    End Property
    Private m_RegionName As String
    Public Property ZipCode() As String
        Get
            Return m_ZipCode
        End Get
        Set(value As String)
            m_ZipCode = value
        End Set
    End Property
    Private m_ZipCode As String
    Public Property Latitude() As String
        Get
            Return m_Latitude
        End Get
        Set(value As String)
            m_Latitude = value
        End Set
    End Property
    Private m_Latitude As String
    Public Property Longitude() As String
        Get
            Return m_Longitude
        End Get
        Set(value As String)
            m_Longitude = value
        End Set
    End Property
    Private m_Longitude As String
    Public Property TimeZone() As String
        Get
            Return m_TimeZone
        End Get
        Set(value As String)
            m_TimeZone = value
        End Set
    End Property
    Private m_TimeZone As String
End Class
Screenshot
| IPAddress | CountryName | CountryCode | CityName | RegionName | ZipCode | Latitude | Longitude | TimeZone | 
|---|
| 168.212.226.204 | United States | US | Everett | Washington | 98204 | 47.8981 | -122.254 | -07:00 |