Who owns MAC prefix 44422F?

44422F is registered to TESTOP CO.,LTD. in the IEEE MA-L registry.

What devices use 44422F?

Any network device with a MAC address starting 44:42:2F was manufactured by or for TESTOP CO.,LTD..

MA-L · OUI prefix

TESTOP CO.,LTD.

Any MAC address starting 44:42:2F is registered to TESTOP CO.,LTD. in KR.

OUI prefix	44422F
Vendor	TESTOP CO.,LTD.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	44:42:2F:00:00:00

What this means

The IEEE assigned the MA-L block 44422F to TESTOP 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 44:42:2F, it is TESTOP CO.,LTD. hardware.

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