Who owns MAC prefix 78E9963?

78E9963 is registered to ACL Co.,Ltd. in the IEEE MA-M registry.

What devices use 78E9963?

Any network device with a MAC address starting 78:E9:96:3 was manufactured by or for ACL Co.,Ltd..

MA-M · OUI prefix

ACL Co.,Ltd.

Any MAC address starting 78:E9:96:3 is registered to ACL Co.,Ltd. in KR.

OUI prefix	78E9963
Vendor	ACL Co.,Ltd.
Registry	MA-M (28-bit, medium block)
Country	KR
Example MAC	78:E9:96:3:00:00:00

What this means

The IEEE assigned the MA-M block 78E9963 to ACL Co.,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 78:E9:96:3, it is ACL Co.,Ltd. hardware.

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