@SQLReview 

```
mysql> EXPLAIN SELECT ml_city_id FROM `specials`.`multilookup` WHERE ml_ip = '645908347';
+----+-------------+-------------+------+-------------------------------------------+--------------------+---------+-------+------+-------------+
| id | select_type | table       | type | possible_keys                             | key                | key_len | ref   | rows | Extra       |
+----+-------------+-------------+------+-------------------------------------------+--------------------+---------+-------+------+-------------+
|  1 | SIMPLE      | multilookup | ref  | multilookup_ts_inx,multilookup_cnt_ts_inx | multilookup_ts_inx | 4       | const | 3865 | Using index |
+----+-------------+-------------+------+-------------------------------------------+--------------------+---------+-------+------+-------------+
1 row in set (0.00 sec)
```
Version with a large number of wikis still returns quickly, can remove the limit from this query to test:
```
mysql> SELECT ml_city_id FROM `specials`.`multilookup` WHERE ml_ip = '645908347' LIMIT 10;
+------------+
| ml_city_id |
+------------+
|     227067 |
|     248505 |
|     251111 |
|     251113 |
|     251118 |
|     249551 |
|      55245 |
|     250228 |
|     250260 |
|      84143 |
+------------+
10 rows in set (0.00 sec)
```