public function lookupIp($ip)
    {
        $results = array();

        $continentServer = new Server();
        foreach ($continentServer->getContinentServers() as $server) {
            $result = $this->queryServer($server, $ip);
                if ($result && !in_array($result, $results)) {
                    $results[$server]= $result;
                }
        }
        $res = "RESULTS FOUND: " . count($results);
        foreach ($results as $server => $result) {
            $res .= "Lookup results for " . $ip . " from " . $server . " server: " . $result;
        }
        return $res;
    }