Who owns MAC prefix 00012F?

00012F is registered to Twinhead International Corp in the IEEE MA-L registry.

What devices use 00012F?

Any network device with a MAC address starting 00:01:2F was manufactured by or for Twinhead International Corp.

MA-L · OUI prefix

Twinhead International Corp

Any MAC address starting 00:01:2F is registered to Twinhead International Corp.

OUI prefix	00012F
Vendor	Twinhead International Corp
Registry	MA-L (24-bit, large block)
Example MAC	00:01:2F:00:00:00

What this means

The IEEE assigned the MA-L block 00012F to Twinhead International Corp. 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 00:01:2F, it is Twinhead International Corp hardware.

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