Social Security Questions? Ask a Social Security Expert
You will need to contact the social security office directly about this matter. While there is the possibility that they will transfer your earnings, there is a greater possibility that since you were using a social security number that did not belong to you, they may not transfer the earnings. You may also find yourself in hot water for fraudulently using a social security number that did not belong to you. My suggestion is this. Let sleeping dogs lie, unless you want to open up a can of worms for yourself.
Let me know if I can be of further assistance to you regarding this matter.
You can refer to the document at the following link for more information regarding transferring earning information.