Who owns MAC prefix 683B1E?

683B1E is registered to Countwise LTD in the IEEE MA-L registry.

What devices use 683B1E?

Any network device with a MAC address starting 68:3B:1E was manufactured by or for Countwise LTD.

MA-L · OUI prefix

Countwise LTD

Any MAC address starting 68:3B:1E is registered to Countwise LTD in US.

OUI prefix	683B1E
Vendor	Countwise LTD
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	68:3B:1E:00:00:00

What this means

The IEEE assigned the MA-L block 683B1E to Countwise 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 68:3B:1E, it is Countwise LTD hardware.

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