Who owns MAC prefix 40516C?

40516C is registered to Grandex International Corporation in the IEEE MA-L registry.

What devices use 40516C?

Any network device with a MAC address starting 40:51:6C was manufactured by or for Grandex International Corporation.

MA-L · OUI prefix

Grandex International Corporation

Any MAC address starting 40:51:6C is registered to Grandex International Corporation in TW.

OUI prefix	40516C
Vendor	Grandex International Corporation
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	40:51:6C:00:00:00

What this means

The IEEE assigned the MA-L block 40516C to Grandex International Corporation. 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 40:51:6C, it is Grandex International Corporation hardware.

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