Who owns MAC prefix EC438B?

EC438B is registered to YAPTV in the IEEE MA-L registry.

What devices use EC438B?

Any network device with a MAC address starting EC:43:8B was manufactured by or for YAPTV.

MA-L · OUI prefix

YAPTV

Any MAC address starting EC:43:8B is registered to YAPTV in KR.

OUI prefix	EC438B
Vendor	YAPTV
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	EC:43:8B:00:00:00

What this means

The IEEE assigned the MA-L block EC438B to YAPTV. 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 EC:43:8B, it is YAPTV hardware.

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