List of .Net Culture and Country Codes

This is what I used:

CultureInfo[] cinfo = CultureInfo.GetCultures(CultureTypes.AllCultures & ~CultureTypes.NeutralCultures);

foreach (CultureInfo cul in cinfo)
{
RegionInfo ri = null;

try
{
ri = new RegionInfo(cul.Name);

string TwoLetterISORegionName = ri.TwoLetterISORegionName;
string ThreeLetterISORegionName = ri.ThreeLetterISORegionName;
string TwoLetterISOLanguageName = cul.TwoLetterISOLanguageName;
string ThreeLetterISOLanguageName = cul.ThreeLetterISOLanguageName;
string RegionName = cul.Name;
}
catch
{
continue;
}

}

Hope that helps
Tim