What this means
The IEEE assigned the MA-L block 000C09 to Hitachi IE Systems Co., Ltd. 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 00:0C:09, it is Hitachi IE Systems Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 000C09?
000C09 is registered to Hitachi IE Systems Co., Ltd 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 IE Systems Co., Ltd's block covers 16,777,216 addresses.
What devices use 000C09?
Any network device with a MAC address starting 00:0C:09 was manufactured by or for Hitachi IE Systems Co., Ltd.