MacBook Reinstall

I purchased two licenses for two copies of eM Client to use on two different computers. My Mac Book had its OS reinstalled, and I must install all software on it again. I cannot tell which activation code belongs to which computer now. Is there any way to determine which activation code was used on the Windows computer?

The license beginning with 93dd089d is the one last used on the Mac.

Thank you. I will activate the correct license today.