def hosted_number_orders(self):
        """
        :rtype: twilio.rest.preview.hosted_numbers.hosted_number_order.HostedNumberOrderList
        """
        if self._hosted_number_orders is None:
            self._hosted_number_orders = HostedNumberOrderList(self)
        return self._hosted_number_orders
:rtype: twilio.rest.preview.hosted_numbers.hosted_number_order.HostedNumberOrderList