Who owns MAC prefix 340CED?

340CED is registered to Moduel AB in the IEEE MA-L registry.

What devices use 340CED?

Any network device with a MAC address starting 34:0C:ED was manufactured by or for Moduel AB.

MA-L · OUI prefix

Moduel AB

Any MAC address starting 34:0C:ED is registered to Moduel AB in SE.

OUI prefix	340CED
Vendor	Moduel AB
Registry	MA-L (24-bit, large block)
Country	SE
Example MAC	34:0C:ED:00:00:00

What this means

The IEEE assigned the MA-L block 340CED to Moduel AB. 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 34:0C:ED, it is Moduel AB hardware.

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