If you want to query a number from Aeries, here's a query that will check both the primary number, and any contact number:

LIST STU CON STU.NM STU.PG CON.NM STU.TL CON.TL IF STU.TL : "9515370024" OR CON.TL : "9515370024" 

Don't use the ( ) or dashes.  And obviously, use the number you're looking for, not the one I made up in this query. :)