Who owns MAC prefix 00235B?

00235B is registered to Gulfstream in the IEEE MA-L registry.

What devices use 00235B?

Any network device with a MAC address starting 00:23:5B was manufactured by or for Gulfstream.

MA-L · OUI prefix

Gulfstream

Any MAC address starting 00:23:5B is registered to Gulfstream in US.

OUI prefix	00235B
Vendor	Gulfstream
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:23:5B:00:00:00

What this means

The IEEE assigned the MA-L block 00235B to Gulfstream. 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 00:23:5B, it is Gulfstream hardware.

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