What this means
The IEEE assigned the MA-L block CCB55A to Fraunhofer ITWM. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting CC:B5:5A, it is Fraunhofer ITWM hardware.
Frequently Asked Questions
Who owns MAC prefix CCB55A?
CCB55A is registered to Fraunhofer ITWM in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Fraunhofer ITWM's block covers 16,777,216 addresses.
What devices use CCB55A?
Any network device with a MAC address starting CC:B5:5A was manufactured by or for Fraunhofer ITWM.