Who owns MAC prefix 8C1F643C7?

8C1F643C7 is registered to RESMED PTY LTD in the IEEE MA-S registry.

What devices use 8C1F643C7?

Any network device with a MAC address starting 8C:1F:64:3C:7 was manufactured by or for RESMED PTY LTD.

MA-S · OUI prefix

RESMED PTY LTD

Any MAC address starting 8C:1F:64:3C:7 is registered to RESMED PTY LTD in AT.

OUI prefix	8C1F643C7
Vendor	RESMED PTY LTD
Registry	MA-S (36-bit, small block)
Country	AT
Example MAC	8C:1F:64:3C:7:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F643C7 to RESMED PTY LTD. 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:64:3C:7, it is RESMED PTY LTD hardware.

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