Who owns MAC prefix 0040CB?

0040CB is registered to LANWAN TECHNOLOGIES in the IEEE MA-L registry.

What devices use 0040CB?

Any network device with a MAC address starting 00:40:CB was manufactured by or for LANWAN TECHNOLOGIES.

MA-L · OUI prefix

LANWAN TECHNOLOGIES

Any MAC address starting 00:40:CB is registered to LANWAN TECHNOLOGIES in US.

OUI prefix	0040CB
Vendor	LANWAN TECHNOLOGIES
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:40:CB:00:00:00

What this means

The IEEE assigned the MA-L block 0040CB to LANWAN TECHNOLOGIES. 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:CB, it is LANWAN TECHNOLOGIES hardware.

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