Who owns MAC prefix 00120A?

00120A is registered to Emerson Climate Technologies GmbH in the IEEE MA-L registry.

What devices use 00120A?

Any network device with a MAC address starting 00:12:0A was manufactured by or for Emerson Climate Technologies GmbH.

MA-L · OUI prefix

Emerson Climate Technologies GmbH

Any MAC address starting 00:12:0A is registered to Emerson Climate Technologies GmbH in DE.

OUI prefix	00120A
Vendor	Emerson Climate Technologies GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:12:0A:00:00:00

What this means

The IEEE assigned the MA-L block 00120A to Emerson Climate Technologies GmbH. 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 00:12:0A, it is Emerson Climate Technologies GmbH hardware.

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