What this means
The IEEE assigned the MA-L block 00223E to IRTrans 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 00:22:3E, it is IRTrans GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 00223E?
00223E is registered to IRTrans 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. IRTrans GmbH's block covers 16,777,216 addresses.
What devices use 00223E?
Any network device with a MAC address starting 00:22:3E was manufactured by or for IRTrans GmbH.