Who owns MAC prefix 001EFD?

001EFD is registered to Microbit 2.0 AB in the IEEE MA-L registry.

What devices use 001EFD?

Any network device with a MAC address starting 00:1E:FD was manufactured by or for Microbit 2.0 AB.

MA-L · OUI prefix

Microbit 2.0 AB

Any MAC address starting 00:1E:FD is registered to Microbit 2.0 AB in SE.

OUI prefix	001EFD
Vendor	Microbit 2.0 AB
Registry	MA-L (24-bit, large block)
Country	SE
Example MAC	00:1E:FD:00:00:00

What this means

The IEEE assigned the MA-L block 001EFD to Microbit 2.0 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 00:1E:FD, it is Microbit 2.0 AB hardware.

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