Who owns MAC prefix 00800B?

00800B is registered to CSK CORPORATION in the IEEE MA-L registry.

What devices use 00800B?

Any network device with a MAC address starting 00:80:0B was manufactured by or for CSK CORPORATION.

MA-L · OUI prefix

CSK CORPORATION

Any MAC address starting 00:80:0B is registered to CSK CORPORATION in JP.

OUI prefix	00800B
Vendor	CSK CORPORATION
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:80:0B:00:00:00

What this means

The IEEE assigned the MA-L block 00800B to CSK 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 00:80:0B, it is CSK CORPORATION hardware.

Look up another MAC