Who owns MAC prefix 00405B?

00405B is registered to FUNASSET LIMITED in the IEEE MA-L registry.

What devices use 00405B?

Any network device with a MAC address starting 00:40:5B was manufactured by or for FUNASSET LIMITED.

MA-L · OUI prefix

FUNASSET LIMITED

Any MAC address starting 00:40:5B is registered to FUNASSET LIMITED in GB.

OUI prefix	00405B
Vendor	FUNASSET LIMITED
Registry	MA-L (24-bit, large block)
Country	GB
Example MAC	00:40:5B:00:00:00

What this means

The IEEE assigned the MA-L block 00405B to FUNASSET 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 00:40:5B, it is FUNASSET LIMITED hardware.

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