What this means
The IEEE assigned the MA-L block 4C3089 to Hitachi Rail GTS Deutschland GmbH. 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 4C:30:89, it is Hitachi Rail GTS Deutschland GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 4C3089?
4C3089 is registered to Hitachi Rail GTS Deutschland GmbH 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. Hitachi Rail GTS Deutschland GmbH's block covers 16,777,216 addresses.
What devices use 4C3089?
Any network device with a MAC address starting 4C:30:89 was manufactured by or for Hitachi Rail GTS Deutschland GmbH.