From Termination_Call_Detail separate you can filter
1) Those 10 agents
2) Separate call disposition 28 (Blind transfer) & 29(Consult Transfer) for those agents
3) Then filter Digits Dialed column in those records.
That should be the Dial Number agent used to transfer call. That could be a post route VDN or service VDN or direct skill extension.
Hope this helps.
Sasikumar.