For volume licenses, sign in to the Adobe Licensing Website to retrieve keys associated with your organization.
To get the most out of Adobe Acrobat Pro DC:
A serial number is a unique 20-character code used to activate Adobe Acrobat Pro DC. The serial number is typically provided with the purchase of a perpetual license or as part of a subscription plan.
As for the serial number list for 2017, I must clarify that sharing or using unauthorized serial numbers is not recommended. However, I can provide some general information on how Adobe Acrobat Pro DC serial numbers work.