What this means
The IEEE assigned the MA-L block 000321 to Reco Research 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 00:03:21, it is Reco Research Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000321?
000321 is registered to Reco Research 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. Reco Research Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 000321?
Any network device with a MAC address starting 00:03:21 was manufactured by or for Reco Research Co., Ltd..