What this means
The IEEE assigned the MA-L block 000027 to JAPAN RADIO COMPANY. 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 00:00:27, it is JAPAN RADIO COMPANY hardware.
Frequently Asked Questions
Who owns MAC prefix 000027?
000027 is registered to JAPAN RADIO COMPANY 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. JAPAN RADIO COMPANY's block covers 16,777,216 addresses.
What devices use 000027?
Any network device with a MAC address starting 00:00:27 was manufactured by or for JAPAN RADIO COMPANY.