What this means
The IEEE assigned the MA-L block C489ED to Solid Optics EU N.V.. 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 C4:89:ED, it is Solid Optics EU N.V. hardware.
Frequently Asked Questions
Who owns MAC prefix C489ED?
C489ED is registered to Solid Optics EU N.V. 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. Solid Optics EU N.V.'s block covers 16,777,216 addresses.
What devices use C489ED?
Any network device with a MAC address starting C4:89:ED was manufactured by or for Solid Optics EU N.V..