Table for already mapped Info Objects

Hi Experts,

Is there any table to find the info objects which is already mapped to a particular field in ECC?

I know about RSOSFIELDMAP which will show the SAP suggested Info objects. But I want to know any other table which shows the info objects already used in transformation. This will be of great help instead of creating custom info objects again and again for a particular field in ECC

Thanks in Advance,

Abdul