Who owns MAC prefix 00091D?

00091D is registered to Proteam Computer Corporation in the IEEE MA-L registry.

What devices use 00091D?

Any network device with a MAC address starting 00:09:1D was manufactured by or for Proteam Computer Corporation.

MA-L · OUI prefix

Proteam Computer Corporation

Any MAC address starting 00:09:1D is registered to Proteam Computer Corporation in US.

OUI prefix	00091D
Vendor	Proteam Computer Corporation
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:09:1D:00:00:00

What this means

The IEEE assigned the MA-L block 00091D to Proteam Computer Corporation. 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 00:09:1D, it is Proteam Computer Corporation hardware.

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