Who owns MAC prefix 8C1F646FC?

8C1F646FC is registered to HM Systems A/S in the IEEE MA-S registry.

What devices use 8C1F646FC?

Any network device with a MAC address starting 8C:1F:64:6F:C was manufactured by or for HM Systems A/S.

MA-S · OUI prefix

HM Systems A/S

Any MAC address starting 8C:1F:64:6F:C is registered to HM Systems A/S in DK.

OUI prefix	8C1F646FC
Vendor	HM Systems A/S
Registry	MA-S (36-bit, small block)
Country	DK
Example MAC	8C:1F:64:6F:C:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F646FC to HM Systems A/S. 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 8C:1F:64:6F:C, it is HM Systems A/S hardware.

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