Who owns MAC prefix 0040DD?

0040DD is registered to HONG TECHNOLOGIES in the IEEE MA-L registry.

What devices use 0040DD?

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

MA-L · OUI prefix

HONG TECHNOLOGIES

Any MAC address starting 00:40:DD is registered to HONG TECHNOLOGIES in US.

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

What this means

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

Look up another MAC