Who owns MAC prefix 0012B8?

0012B8 is registered to G2 Microsystems in the IEEE MA-L registry.

What devices use 0012B8?

Any network device with a MAC address starting 00:12:B8 was manufactured by or for G2 Microsystems.

MA-L · OUI prefix

G2 Microsystems

Any MAC address starting 00:12:B8 is registered to G2 Microsystems in US.

OUI prefix	0012B8
Vendor	G2 Microsystems
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:12:B8:00:00:00

What this means

The IEEE assigned the MA-L block 0012B8 to G2 Microsystems. 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:B8, it is G2 Microsystems hardware.

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