Who owns MAC prefix 00D057?

00D057 is registered to ULTRAK, INC. in the IEEE MA-L registry.

What devices use 00D057?

Any network device with a MAC address starting 00:D0:57 was manufactured by or for ULTRAK, INC..

MA-L · OUI prefix

ULTRAK, INC.

Any MAC address starting 00:D0:57 is registered to ULTRAK, INC. in US.

OUI prefix	00D057
Vendor	ULTRAK, INC.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:D0:57:00:00:00

What this means

The IEEE assigned the MA-L block 00D057 to ULTRAK, 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 00:D0:57, it is ULTRAK, INC. hardware.

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