LocatorHQ - Get Country/Region/City From IP Address

Register FREE Username and API key at http://www.locatorhq.com[^]

Then, get the data by accessing: 

http://api.locatorhq.com/?user=<username>&key=<apikey>&ip=<ipaddress>  

Example:

http://api.locatorhq.com/?user=john3041&key=27364b3d6060c9e0738754c9be60908ab00ac7&ip=64.233.191.255 

Data return in this format:

<countryCode>,<countryName>,<region>,<city>,<latitude>,<longitude>

Example:

US,United States,California,Mountain View,34.305,-86.2981,64.233.191.255 

Data format suports XML and JSON, just add a parameter of format:

http://api.locatorhq.com/?user=<username>&key=<apikey>&ip=<ipaddress>&format=xml 
http://api.locatorhq.com/?user=<username>&key=<apikey>&ip=<ipaddress>&format=json

For C# ASP.NET, you can get the data at code behind by using WebClient.

Example:

string url = "http://api.locatorhq.com/?user=john3041&key=27364b3d6060c9e0738754c9be60908ab00ac7&ip=64.233.191.255";
WebClient wc = new WebClient();
byte[] ba = wc.DownloadData(url);
string text = System.Text.Encoding.UTF8.GetString(ba);