Dave Cox has just posted ip. I think anyone looking for service should check out LiquidVPN before buying service elsewhere. Below is an excerpt of the page.
$params = getopt('l:i:');
if (!isset($params['l'])) $params['l'] = 'YOUR_LICENSE_KEY';
if (!isset($params['i'])) $params['i'] = '22.214.171.124';
$query = 'https://geoip.maxmind.com/e?' . http_build_query($params);
… – https://www.liquidvpn.com/ip/ – Dave Cox
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