Who owns MAC prefix 0012AC?

0012AC is registered to ONTIMETEK INC. in the IEEE MA-L registry.

What devices use 0012AC?

Any network device with a MAC address starting 00:12:AC was manufactured by or for ONTIMETEK INC..

MA-L · OUI prefix

ONTIMETEK INC.

Any MAC address starting 00:12:AC is registered to ONTIMETEK INC. in KR.

OUI prefix	0012AC
Vendor	ONTIMETEK INC.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:12:AC:00:00:00

What this means

The IEEE assigned the MA-L block 0012AC to ONTIMETEK 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 00:12:AC, it is ONTIMETEK INC. hardware.

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