Is it possible to find which email address is associated with my ipod nano if I look it up by serial number?

Hey koo34,

You can view your support profile for your Apple ID, including the products associated with it, through the following website:

Apple - Support - My Support Profile

https://supportprofile.apple.com

I would suggest that you try to associate your device with your Apple ID through that site. The following article may have some more helpful information for you regarding this question:

How to manage your AppleCare products

http://support.apple.com/kb/HT5686

Thanks for coming to the Apple Support Communities!

Cheers,

Braden

You're welcome, koo34! Thanks for being a part of the Apple Support Communities!

Regards,

Braden