What this means
The IEEE assigned the MA-L block 002153 to SeaMicro Inc.. 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 00:21:53, it is SeaMicro Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 002153?
002153 is registered to SeaMicro Inc. 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. SeaMicro Inc.'s block covers 16,777,216 addresses.
What devices use 002153?
Any network device with a MAC address starting 00:21:53 was manufactured by or for SeaMicro Inc..