BiTel

mysql> SELECT * FROM dispatch_contact
    -> WHERE val = '7903ххххххх';
+------+-------------+---------+-------------+
| id   | contract_id | type_id | val         |
+------+-------------+---------+-------------+
| 1288 |        4667 |       2 | 7903ххххххх |
+------+-------------+---------+-------------+
1 row in set (0.00 sec)

mysql> SELECT * FROM contract WHERE id  = '4667';
Empty set (0.00 sec)