Who owns MAC prefix 78C2C09?

78C2C09 is registered to SES in the IEEE MA-M registry.

What devices use 78C2C09?

Any network device with a MAC address starting 78:C2:C0:9 was manufactured by or for SES.

MA-M · OUI prefix

SES

Any MAC address starting 78:C2:C0:9 is registered to SES in FR.

OUI prefix	78C2C09
Vendor	SES
Registry	MA-M (28-bit, medium block)
Country	FR
Example MAC	78:C2:C0:9:00:00:00

What this means

The IEEE assigned the MA-M block 78C2C09 to SES. 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 78:C2:C0:9, it is SES hardware.

Look up another MAC