Who owns MAC prefix 00007B?

00007B is registered to RESEARCH MACHINES in the IEEE MA-L registry.

What devices use 00007B?

Any network device with a MAC address starting 00:00:7B was manufactured by or for RESEARCH MACHINES.

MA-L · OUI prefix

RESEARCH MACHINES

Any MAC address starting 00:00:7B is registered to RESEARCH MACHINES in GB.

OUI prefix	00007B
Vendor	RESEARCH MACHINES
Registry	MA-L (24-bit, large block)
Country	GB
Example MAC	00:00:7B:00:00:00

What this means

The IEEE assigned the MA-L block 00007B to RESEARCH MACHINES. 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 00:00:7B, it is RESEARCH MACHINES hardware.

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