Who owns MAC prefix 00217A?

00217A is registered to Sejin Electron, Inc. in the IEEE MA-L registry.

What devices use 00217A?

Any network device with a MAC address starting 00:21:7A was manufactured by or for Sejin Electron, Inc..

MA-L · OUI prefix

Sejin Electron, Inc.

Any MAC address starting 00:21:7A is registered to Sejin Electron, Inc. in KR.

OUI prefix	00217A
Vendor	Sejin Electron, Inc.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:21:7A:00:00:00

What this means

The IEEE assigned the MA-L block 00217A to Sejin Electron, Inc.. 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 00:21:7A, it is Sejin Electron, Inc. hardware.

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