What this means
The IEEE assigned the MA-M block 38FDFEB to Swedish Adrenaline AB. 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 38:FD:FE:B, it is Swedish Adrenaline AB hardware.
Frequently Asked Questions
Who owns MAC prefix 38FDFEB?
38FDFEB is registered to Swedish Adrenaline AB in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Swedish Adrenaline AB's block covers 1,048,576 addresses.
What devices use 38FDFEB?
Any network device with a MAC address starting 38:FD:FE:B was manufactured by or for Swedish Adrenaline AB.