İşte benim modeli

public function getDetails($ip)
    {
        $this->db->select('country_code, country_name');
        $this->db->where("'2323' BETWEEN begin_ip_num AND end_ip_num");
        return $this->db->get('ip')->row();
    }

Ben bu hatayı alıyorum:

Unknown column ''2323'' in 'where clause'

SELECT `country_code`, `country_name` FROM (`ip`) WHERE `2130706433` BETWEEN begin_ip_num AND end_ip_num

Nerede yanlış `m?