Who owns MAC prefix 683F1E?

683F1E is registered to EFFECT Photonics B.V. in the IEEE MA-L registry.

What devices use 683F1E?

Any network device with a MAC address starting 68:3F:1E was manufactured by or for EFFECT Photonics B.V..

MA-L · OUI prefix

EFFECT Photonics B.V.

Any MAC address starting 68:3F:1E is registered to EFFECT Photonics B.V. in LZ.

OUI prefix	683F1E
Vendor	EFFECT Photonics B.V.
Registry	MA-L (24-bit, large block)
Country	LZ
Example MAC	68:3F:1E:00:00:00

What this means

The IEEE assigned the MA-L block 683F1E to EFFECT Photonics B.V.. 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 68:3F:1E, it is EFFECT Photonics B.V. hardware.

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