Who owns MAC prefix 00090B?

00090B is registered to MTL Instruments PLC in the IEEE MA-L registry.

What devices use 00090B?

Any network device with a MAC address starting 00:09:0B was manufactured by or for MTL Instruments PLC.

MA-L · OUI prefix

MTL Instruments PLC

Any MAC address starting 00:09:0B is registered to MTL Instruments PLC.

OUI prefix	00090B
Vendor	MTL Instruments PLC
Registry	MA-L (24-bit, large block)
Example MAC	00:09:0B:00:00:00

What this means

The IEEE assigned the MA-L block 00090B to MTL Instruments PLC. 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 00:09:0B, it is MTL Instruments PLC hardware.

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