Who owns MAC prefix 0040BC?

0040BC is registered to ALGORITHMICS LTD. in the IEEE MA-L registry.

What devices use 0040BC?

Any network device with a MAC address starting 00:40:BC was manufactured by or for ALGORITHMICS LTD..

MA-L · OUI prefix

ALGORITHMICS LTD.

Any MAC address starting 00:40:BC is registered to ALGORITHMICS LTD. in GB.

OUI prefix	0040BC
Vendor	ALGORITHMICS LTD.
Registry	MA-L (24-bit, large block)
Country	GB
Example MAC	00:40:BC:00:00:00

What this means

The IEEE assigned the MA-L block 0040BC to ALGORITHMICS 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 00:40:BC, it is ALGORITHMICS LTD. hardware.

Look up another MAC