Who owns MAC prefix 78EF4C?

78EF4C is registered to Unetconvergence Co., Ltd. in the IEEE MA-L registry.

What devices use 78EF4C?

Any network device with a MAC address starting 78:EF:4C was manufactured by or for Unetconvergence Co., Ltd..

MA-L · OUI prefix

Unetconvergence Co., Ltd.

Any MAC address starting 78:EF:4C is registered to Unetconvergence Co., Ltd. in KR.

OUI prefix	78EF4C
Vendor	Unetconvergence Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	78:EF:4C:00:00:00

What this means

The IEEE assigned the MA-L block 78EF4C to Unetconvergence Co., Ltd.. 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 78:EF:4C, it is Unetconvergence Co., Ltd. hardware.

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