Who owns MAC prefix 001EFC?

001EFC is registered to JSC "MASSA-K" in the IEEE MA-L registry.

What devices use 001EFC?

Any network device with a MAC address starting 00:1E:FC was manufactured by or for JSC "MASSA-K".

MA-L · OUI prefix

JSC "MASSA-K"

Any MAC address starting 00:1E:FC is registered to JSC "MASSA-K" in RU.

OUI prefix	001EFC
Vendor	JSC "MASSA-K"
Registry	MA-L (24-bit, large block)
Country	RU
Example MAC	00:1E:FC:00:00:00

What this means

The IEEE assigned the MA-L block 001EFC to JSC "MASSA-K". 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 00:1E:FC, it is JSC "MASSA-K" hardware.

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