simple answer ==> no.
And it will be difficult to get it as Autodesk has set a 3 releases-back limit, so if you currently have 2012 then you can get auth.codes for 2011 and 2010, but not older ....plus only if you have subscription.
Without subscription my experiance is you don't get auth.codes for any older release.
Anyway: best to ask that for is your Auth. AutoCAD Dealer