Who owns MAC prefix B01B4B?

B01B4B is registered to Invisible Fun Studio Limited in the IEEE MA-L registry.

What devices use B01B4B?

Any network device with a MAC address starting B0:1B:4B was manufactured by or for Invisible Fun Studio Limited.

MA-L · OUI prefix

Invisible Fun Studio Limited

Any MAC address starting B0:1B:4B is registered to Invisible Fun Studio Limited in HK.

OUI prefix	B01B4B
Vendor	Invisible Fun Studio Limited
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	B0:1B:4B:00:00:00

What this means

The IEEE assigned the MA-L block B01B4B to Invisible Fun Studio Limited. 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 B0:1B:4B, it is Invisible Fun Studio Limited hardware.

Look up another MAC