The maximum devices for this prefix is 16777216 Possible devices,
This means that manufacturer can use this prefix to produce this amount of devices,but it didn't mean that he already manufactured them all or he had a plan to do.
And if This Manufacturer used all possible devices for this prefix he had to buy a new prefix from the IEEE to manufacture extra devices.
1608557 Ontario, Inc., an integrated biopharmaceutical company, engages in the development and manufacture of biologics, particularly blood-related protein-based therapeutics. The company was founded in 1985. It was formerly known as Hemosol Corp. and changed its name to 1608557 Ontario, Inc. in July 2007. 1608557 Ontario, Inc. is based in Mississauga, Canada. On November 24, 2005, Hemosol Corp. filed for Bankruptcy and Insolvency Act.