Who owns MAC prefix 58BC8F?

58BC8F is registered to Cognitive Systems Corp. in the IEEE MA-L registry.

What devices use 58BC8F?

Any network device with a MAC address starting 58:BC:8F was manufactured by or for Cognitive Systems Corp..

MA-L · OUI prefix

Cognitive Systems Corp.

Any MAC address starting 58:BC:8F is registered to Cognitive Systems Corp..

OUI prefix	58BC8F
Vendor	Cognitive Systems Corp.
Registry	MA-L (24-bit, large block)
Example MAC	58:BC:8F:00:00:00

What this means

The IEEE assigned the MA-L block 58BC8F to Cognitive Systems Corp.. 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 58:BC:8F, it is Cognitive Systems Corp. hardware.

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