Who owns MAC prefix 0019AC?

0019AC is registered to GSP SYSTEMS Inc. in the IEEE MA-L registry.

What devices use 0019AC?

Any network device with a MAC address starting 00:19:AC was manufactured by or for GSP SYSTEMS Inc..

MA-L · OUI prefix

GSP SYSTEMS Inc.

Any MAC address starting 00:19:AC is registered to GSP SYSTEMS Inc. in KR.

OUI prefix	0019AC
Vendor	GSP SYSTEMS Inc.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:19:AC:00:00:00

What this means

The IEEE assigned the MA-L block 0019AC to GSP SYSTEMS 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 00:19:AC, it is GSP SYSTEMS Inc. hardware.

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