Prova così:

codice:
$data = file('ip-to-country.csv');

foreach($data as $value){

    list($range_from, $range_to, $code2, $code3, $full_name) = explode(',', trim(str_replace('"', '', $value)));

    sqlite_query($db,"

        INSERT INTO ip_to_country

        ('ip_in', 'ip_out', 'initials_2', 'initials_3', 'full_length')

        VALUES (
        
            '{$range_from}',
            '{$range_to}',
            '" . addslashes($code2) . "',
            '" . addslashes($code3) . "',
            '" . addslashes(trim($full_name)) . "'
        
        )

    ");  
}