Who owns MAC prefix 001BC5091?

001BC5091 is registered to 3green ApS in the IEEE MA-S registry.

What devices use 001BC5091?

Any network device with a MAC address starting 00:1B:C5:09:1 was manufactured by or for 3green ApS.

MA-S · OUI prefix

3green ApS

Any MAC address starting 00:1B:C5:09:1 is registered to 3green ApS in DK.

OUI prefix	001BC5091
Vendor	3green ApS
Registry	MA-S (36-bit, small block)
Country	DK
Example MAC	00:1B:C5:09:1:00:00:00

What this means

The IEEE assigned the MA-S block 001BC5091 to 3green ApS. 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 00:1B:C5:09:1, it is 3green ApS hardware.

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