While searching for an "Adobe Illustrator CS5 serial number list" is a common reaction when trying to access older software, using pirated or public keys poses severe security risks and legal issues. Adobe Creative Suite 5 (CS5) was released in 2010 and has been officially discontinued for years.
Finding a working "Adobe Illustrator Serial Number CS5 List" online is no longer viable or safe. Adobe Illustrator Serial Number Cs5 List
based on your specific design needs.