Who owns MAC prefix B4009C?

B4009C is registered to CableWorld Ltd. in the IEEE MA-L registry.

What devices use B4009C?

Any network device with a MAC address starting B4:00:9C was manufactured by or for CableWorld Ltd..

MA-L · OUI prefix

CableWorld Ltd.

Any MAC address starting B4:00:9C is registered to CableWorld Ltd. in HU.

OUI prefix	B4009C
Vendor	CableWorld Ltd.
Registry	MA-L (24-bit, large block)
Country	HU
Example MAC	B4:00:9C:00:00:00

What this means

The IEEE assigned the MA-L block B4009C to CableWorld 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 B4:00:9C, it is CableWorld Ltd. hardware.

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