Who owns MAC prefix F4B6E5?

F4B6E5 is registered to TerraSem Co.,Ltd in the IEEE MA-L registry.

What devices use F4B6E5?

Any network device with a MAC address starting F4:B6:E5 was manufactured by or for TerraSem Co.,Ltd.

MA-L · OUI prefix

TerraSem Co.,Ltd

Any MAC address starting F4:B6:E5 is registered to TerraSem Co.,Ltd in KR.

OUI prefix	F4B6E5
Vendor	TerraSem Co.,Ltd
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	F4:B6:E5:00:00:00

What this means

The IEEE assigned the MA-L block F4B6E5 to TerraSem 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 F4:B6:E5, it is TerraSem Co.,Ltd hardware.

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