What this means
The IEEE assigned the MA-L block 002104 to Gigaset Technologies 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 00:21:04, it is Gigaset Technologies GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 002104?
002104 is registered to Gigaset Technologies 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. Gigaset Technologies GmbH's block covers 16,777,216 addresses.
What devices use 002104?
Any network device with a MAC address starting 00:21:04 was manufactured by or for Gigaset Technologies GmbH.