Who owns MAC prefix 000A91?

000A91 is registered to HemoCue AB in the IEEE MA-L registry.

What devices use 000A91?

Any network device with a MAC address starting 00:0A:91 was manufactured by or for HemoCue AB.

MA-L · OUI prefix

HemoCue AB

Any MAC address starting 00:0A:91 is registered to HemoCue AB in SE.

OUI prefix	000A91
Vendor	HemoCue AB
Registry	MA-L (24-bit, large block)
Country	SE
Example MAC	00:0A:91:00:00:00

What this means

The IEEE assigned the MA-L block 000A91 to HemoCue 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 00:0A:91, it is HemoCue AB hardware.

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