Who owns MAC prefix 000A3B?

000A3B is registered to GCT Semiconductor, Inc in the IEEE MA-L registry.

What devices use 000A3B?

Any network device with a MAC address starting 00:0A:3B was manufactured by or for GCT Semiconductor, Inc.

MA-L · OUI prefix

GCT Semiconductor, Inc

Any MAC address starting 00:0A:3B is registered to GCT Semiconductor, Inc in US.

OUI prefix	000A3B
Vendor	GCT Semiconductor, Inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:0A:3B:00:00:00

What this means

The IEEE assigned the MA-L block 000A3B to GCT Semiconductor, 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 00:0A:3B, it is GCT Semiconductor, Inc hardware.

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