Who owns MAC prefix 542F89?

542F89 is registered to Euclid Laboratories, Inc. in the IEEE MA-L registry.

What devices use 542F89?

Any network device with a MAC address starting 54:2F:89 was manufactured by or for Euclid Laboratories, Inc..

MA-L · OUI prefix

Euclid Laboratories, Inc.

Any MAC address starting 54:2F:89 is registered to Euclid Laboratories, Inc. in US.

OUI prefix	542F89
Vendor	Euclid Laboratories, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	54:2F:89:00:00:00

What this means

The IEEE assigned the MA-L block 542F89 to Euclid Laboratories, Inc.. 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 54:2F:89, it is Euclid Laboratories, Inc. hardware.

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