public function create($friendlyName, $ipAddress, $options = array()) {
        $options = new Values($options);

        $data = Values::of(array(
            'FriendlyName' => $friendlyName,
            'IpAddress' => $ipAddress,
            'CidrPrefixLength' => $options['cidrPrefixLength'],
        ));

        $payload = $this->version->create(
            'POST',
            $this->uri,
            array(),
            $data
        );

        return new IpAddressInstance(
            $this->version,
            $payload,
            $this->solution['accountSid'],
            $this->solution['ipAccessControlListSid']
        );
    }